Can you tell me if this fits the Arai Signet X?

I don't know how well it fits Signet X; mine is Quantum-X. But I wanted to mention that with the optional fog sheild and sun shield, I ended up just cutting mine to fit where I wanted it to fit. Yea, I had to buy 2 so i could make better cuts the 2nd time around. But, you get the idea.

what is the size for this product

Not sure what you mean by your question. It fits any helmet shield/visor (be sure to order the Arai version if you own an Arai helmet). It fits along the entire top edge of your visor, and is about 1 inch tall. Hope this helps.

What percent visible light transmission?

The Helmet Sunblocker's polymer film's UV transmission is 100% at 260 NM (Normal Wave Length of Sunlight)

Will this work with a pinlock?

It will work and for best results, install the Sunblocker first. Let dry overnight, then install the Pinlock over the Sunblocker. Tip: while soaking in the soapy (Dawn) water, zap it in the microwave for about 30 seconds to "relax" the Sunblocker. This will make it much easier to install.

for Arai Helmets

Product ID: 242857230

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Details

Colour
Dark green
Brand
Helmet
Vehicle service type
['Motorcycle'
Item weight
0.01 Pounds
Material
Plastic

🔄Fully transferable

⚙️Easy soap & water install

🛡️100% UV protection

Description

🕶️ Ride bright, block the glare, own the road.

TRANSFERABLE TECH - Move your sunblocker between helmets effortlessly—no need to buy multiples.
NO SUNGLASSES NEEDED - Eliminates glare and eye strain so you can ditch the shades for safer, clearer rides.
GLARE FREE VISION ALWAYS - Installs inside your visor above line of sight to block sun without blocking view.
UNIVERSAL FIT ZERO HASSLE - Fits all helmets with face shields, including Arai, no custom adjustments needed.
RIDE COOLER STAY COMFORTABLE - Polymer film reduces heat buildup inside helmet on hot days.

The Helmet Sunblocker for Arai Helmets is a dark green polymer film that installs easily inside any helmet face shield using just soap and water. It provides 100% UV protection and reduces glare without obstructing your line of sight, making it safer for day and night riding. Fully transferable between helmets, it keeps your eyes relaxed, your helmet cooler, and eliminates the need for sunglasses or changing face shields. Designed originally for aviation, this must-have accessory fits all helmets and works seamlessly with Pinlock systems.

Specifications

Sport	Motorcycling, snow mobiling
Certificate type	SNELL
Finish type	Polymer film
Number of vents	2
Shell type	Hard
Shape	Round
Closure type	chin strap
Manufacturer	Helmet Sunblocker
Model name	Helmet Sunblocker for Arai Helmets
Color	Dark green
Size	1.5 H x 10.25 L
Style	Full Face, flip up
Material type	Plastic
Features	100% UV protection, 100% guaranteed, Cooler helmet, Easy installation, Eliminates glare, Fits all helmets, Fully transferable from helmet to helmet, Keeps eyes relaxed, No more changing face shields for day and night riding., No more squinting, no more glare, no more sunglasses.
Batteries included?	No
Department	Unisex
Item model number	Arai HSBA
ASIN	B00BSDG7AK

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