Bluemoona 10mm 3/8" Metal Snap Fastener Leather Rapid Rivet Button Setting Tool Kit - 100 Sets Nickle Finish for DIY Crafting, Leatherworking, and Bag Making

I love that this came with the tools. It's awesome how many snaps are included. But the tool that it came with for holding the "donut" shapes down doesn't AT ALL work. It's visibly bent, and even though I tried to hammer it back to being straight, it only slightly improved. I hope these snaps stay despite not being secured properly.No instructions on the use of the tools. The picture shows what must be part of the tool set but it wasn't included in the shipment.niceIt took my some few minutes to figure out the way on how to install it.I can just say several of the tops that contains a flat surface are worn out.A+!!!!