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🖊️ Write sharp, write smart—because your ideas deserve the best.
The EnerGel RTX Retractable Liquid Gel Pen features a 0.5mm needle tip for ultra-fine lines, combining liquid and gel ink technology for a smooth, fast-drying, and smear-resistant writing experience. Its sleek metal-accented barrel and latex-free grip provide professional style and comfort, while its refillable design supports sustainability. Trusted by left-handed writers and professionals alike, this pen delivers precision and durability, even surviving accidental washing machine cycles.
















| ASIN | B0047CP6HE |
| Additional Features | Refillable, Retractable |
| Age Range (Description) | Adult |
| Age Range Description | Adult |
| Best Sellers Rank | #734 in Office Products ( See Top 100 in Office Products ) #41 in Gel Ink Pens |
| Body Shape | Round |
| Brand | Pentel |
| Brand Name | Pentel |
| Closure Type | Retractable |
| Color | Black |
| Customer Reviews | 4.8 out of 5 stars 8,275 Reviews |
| Drill Point | Fine |
| Global Trade Identification Number | 00072512234105 |
| Grip Type | latex-free |
| Hand Orientation | Left |
| Hardness | B |
| Included Components | No |
| Ink Base | Water |
| Ink Color | Black |
| Item Diameter | 0.5 Millimeters |
| Item Dimensions | 0.5 x 7.25 x 2.81 inches |
| Item Type Name | Retractable |
| Item Weight | 1 Ounces |
| Line Size | 0.5 milimeter |
| Manufacturer | Pentel |
| Material | Plastic |
| Material Type | Plastic |
| Model Name | RTX Retractable Liquid Gel Pen |
| Model Number | BLN75BP3A |
| Pattern | 0.5mm Needle |
| Recommended Uses For Product | Permanent makeup and microblading |
| Style | 3 Pack-0.5 mm Needle |
| UPC | 072512234105 |
| Unit Count | 3 Count |
| Warranty Description | Limited Lifetime Warranty |
| Water Resistance Level | Not Water Resistant |
| Writing Instrument Form | Roller Ball Pen |
| Writing Technique | gel ink |
M**M
No negative aspects, positively perfect.
A 0.5mm needle point tip makes for a superior writing instrument: very dark black ink that dries nearly instantly, fluid ink flow which enables smooth writing, even on 20lb printer paper; it also writes on thermal printer paper without skipping, blotching or smearing. The ink is fraud proof, therefore, suitable for document signing. An unexpected attribute of the pen is, if accidentally left in your shirt pocket, placed in the washing machine, and it undergoes an entire cycle of washing, rinsing and spinning, in my case, the pen did not leak ink, nor did it suffer any perceivable damage. I simply disassembled the pen, removed any trapped water, and it performed as perfectly as before the mishap. Outstanding pen in my arsenal. It may be used for drawing purposes equally well.
J**N
Just about the ideal pen, especially on cheaper paper like notebooks and legal pads
I don't know what Pentel did with this pen, but it's by far the best everyday-use ink I've ever seen in a pen this cheap. This is the pen that will dry faster than all the others, lay darker lines than all the others, and never, ever bleed on even the roughest paper. I take a lot of notes at work and at home, usually on cheap legal pads from Costco, and this has the best price-performance ratio of any pen I've used. I bought these alongside the uni-ball Vision Rollerball Pens, Micro Point (0.5mm), Black, 4 Count and the Pilot Precise V5 RT Retractable Rolling Ball Pens, Extra Fine Point, 3-Pack, Black Ink (26052) , all in black 0.5mm. I tested them all together and even asked friends and family to test which they liked more - everyone confidently decided that these were the best despite being the cheapest of the three. They write smooth, don't bleed, and dry fast. Not only that, but the lines are confidently darker than the uni-ball Vision and on par with the Precise V5 ink, but without the frequent bleeding, pooling, and slow drying that you sometimes get from liquid inks - Pilot is a particularly egregious offender here if you don't spring for expensive stationery. While the other pens will certainly perform well, especially on nicer paper... they're decidedly more expensive. I got these as an add-on item for $5, which works out to about $1.67 per pen. In addition, you can usually get refills for these pens at around $1 each if you buy in bulk. I felt a little strange for liking these so much, especially since I usually can't stand gel pens, but I reluctantly realized that these simply wrote better than every other pen I had. I can't say much about the build quality or how well the ink will protect you from something like check or signature fraud, though, so consider your options more carefully if that's what you're worried about. In a nutshell, here's my take: Pros: - Never bleeds, even on cheap paper - Dries stupid fast - Surprisingly solid, deep black ink - Flows just as well as comparable liquid ink roller-balls - Dirt cheap considering the quality Cons: - Build quality is questionable - the clip will snap off if you're too rough with it - The grip, while I have no complaints, is a bit thicker than some people with small hands may like Just go for it. If you take a lot of quick notes, are left handed, or have issues with your ink smearing because it doesn't dry fast enough, this will be the best $5 you spend all month.
A**D
Favorite pens!
Love these! They write smooth and small which is just what I needed!! Color is also bright
B**E
The fine point is perfect
These pens are excellent! If you love a clean and legible penmanship, this is the perfect one. Great for work and home
G**Y
Great Product
Great pens. Love the purple ink. Writes smoothly, refills last a long time!
A**N
Great pens with some small things that could make it amazing
I love these pens.. they are definitely in my top 2 favorite pens, I love the .5mm tips and they write so smoothly. I just wish they weren't so bulky and had more comfortable grip. They aren't good to hold and write with for long periods.
L**A
Great pen
I really like these pens! I love the needle point, 0.5 is my ideal thinness. They don’t skip when writing and are comfy to hold. I will say the ink does not last super long, might look into refills though because the pen itself stays perfectly fine. Love these at work!
S**M
Beautiful inks, quick drying, and smooth writing
I love the Pentel pens - they are my favorites of the bazillion pens I own (pen lovers get that). I love their ink colors, the smoothness of the writing, and the feel of the pen. I write with other pens, too, but I enjoy these the most by far. (A helpful tip: the little plastic/wax ball used to seal the point of the pen sometimes leave a tiny piece stuck to the point after you pull it off. If you don't get a smooth flow or it feels rough, run a thumbnail across the tip from a few different angles to clear it - then enjoy!)
R**I
Great pen but poor packaging from Morgan's Direct
Great pen, prefect weight in the hand. Glides smoothly even on cheap printer paper and doesn't smudge for a gel pen. However, the 3 pack came loose in a cardboard box and not in the product packaging as shown here. It's not Pentel's fault but Morgan's Direct the seller... The pens did arrive with their protective ball on the nibs though.
F**A
La penna migliore con cui abbia mai scritto
Penna un po' costosa, ma vale tutti i suoi soldi. Il gel è fluido e ad asciugatura rapida, non si sbava e permette una scrittura piacevole. L'impugnatura è comoda ed anche il design è carino. Ottima se vi piace scrivere a mano. NON SBAVA SULL'EVIDENZIATORE, e ciò la rende perfetta per studiare. La punta è di 0.5mm, a parere mio un po' troppo sottile, ma è un parere personale, essendo abituata ad usare penne con la punta di 1.0mm. Rimane comunque la penna migliore con cui abbia mai scritto.
E**A
NIE MEHR OHNE!! :)
Die besten Stifte ÜBERHAUPT! Kaufe keine anderen mehr!!
K**T
Geen 12 pennen
Had een 12 Unité (Lot de 1) besteld. Heb maar 3 pennen gekregen, geen plus 10 euro waard!
E**2
Génial
Conforme, arrivé dans les temps et en bon état. Ils sèchent assez vite, ne font pas de bavure et ne traverse pas le papier. On peut surligner par-dessus. Bref très bon produit !
Trustpilot
2 weeks ago
2 months ago