Well, that little one looks pretty cool. First, it's not for everyone. If you've got money and you're into that sort of thing (radioactive tritium in a titanium keychain) then by all means check this out. It's a lot smaller than you think unless you analyze the photo with a quarter next to it. I ordered vials of tritium from another supplier. The vials are very easy to install. The only thing I don't like is the key ring that comes with the kit. It's made of some kind of very inelastic alloy, and after I attached it to my keys, it didn't return to its original shape. It's frustrating when the price of what people usually spend a few dollars on is high. I ended up using another ring I found in my random drawer. Luckily the price and the super tough split ring don't change the fact that this thing is super cool. I've had it for over a month and have had no problems with broken bottles or scratches/stains. Tritium vials emit the perfect amount of light for you to see in a dark room. Please note this is not a flashlight. I chose all blue, but you can choose any color combination offered. Like I said, while it's not for everyone, I enjoy the fact that I'm carrying around radioactive material that glows.
Custom Engraved Silver FAINOL Boyfriend Keychain
27 Review
KeySmart Magnetic Keychain Secure Attachment Men's Accessories
63 Review
Carry Your Love For Firefly Everywhere With QMx'S High-Quality HD Key Chain
34 Review
Titanium Keyring by BANG TI: Easy-to-Use Operation for Ultimate Convenience!
50 Review