OVERVIEW We have some very and unique snaps to make a great accent on bags, backpacks, purses and more. The base metal on all the sets are cast from solid brass and create a nice heft to them giving your project that quality high end feel. The snaps have a unique quick release mechanism that opens automatically as you pull back on the top. All the parts are machined to the highest of standards and have a nice tight tolerance to ensure proper fit.  All the parts assemble nicely and fit leather from 1.2mm to 3mm thick. We offer a special key to help tighten the top cap snug. The parts are easy to assemble and are a great way to add a creative and unique design to your projects STYLES Small round Large round Flower shape MATERIALS Base Metal: Solid Brass Finish: Natural Brass (Clear Finish to prevent oxidation) Finish: Gold Finish: Silver Finish: Matte Black PVD DIMENSIONS Top Cap Diameter: 10mm at top, 15mm at base Top Cap will fit leather thickness from 1.2mm (3oz) to 3mm (~8oz) Bottom Cap will fit leather thickness from 1.4mm (3.5oz) to 6mm (16oz) Note you can make leather washer to add thickness if your leather is too thin *Each set includes 4 parts needed to complete assembly.  Note the threaded screw for the bottom of the base is made of stainless steel  **Key tool for tightening the lock is available here SHIPPING & RETURNS 30-Day Money Back Guarantee! Read more about our return policy HERE