It's very light and definitely, as it is said, extremely loud, maybe it could be nice if there was a place to plug it into the keychain.

It doesn't stop in gear 3, but print quality is nice. Maybe having the numbers at the same level with the most master layer can give a better look

This is very useful reduces the amount of waste

It's pretty good, but the screw holes are a bit tight.

It's very nice but it's a bit big for a keychain and the place where it attaches to the keychain is weak.