Review on 🔧 Alritz Double Cap Rivet Tubular - 240 Sets Leather Rivets with Tools for DIY Leather Craft: 4 Colors, 2 Sizes, Metal Studs for Repair & Decoration of Clothes, Shoes, Bags, and Belts by Amber Perez

I use the big ones on keychains. They are easy to install and the kit includes the three tools (punch, anvil and installer) needed for a clean install. So far I've only ruined one because I didn't pay attention to the size of the anvil I was supposed to be using. The big ones go through easily and hold 4 layers of vinyl together without being too long or too short! Now for the little rivets in this bag - I haven't used them yet. I think they work for decorative purposes on a single or maybe a layer of thin leather or vinyl, but they're too short to use as a clasp for a four-layer keychain.