WUTA Bull Leather Covered Snap Buttons Genuine-leather-covered snap buttons Brand: WUTA A solid brass mechanism with a bull-leather-covered cap; a leather-covered fastener that hides the metal. FeaturesCap diameter 10 mm / 3/8 inch. Each set: 2 caps, 1 stud part and 1 socket. Options of 4/10/20 sets per package are shown.12 colors: Saddle Brown, Red, Dark Green, Midnight Blue, Mint Green, Purple, Yellow, Bordeaux Red, Navy Blue, Coffee, Oak Brown, Rope Gray.Suitable for wallets, card cases, AirPods cases, handbags, notebook covers, watch pouches and other leather goods.An installation tool and a hole punch are required. For the 10 mm snap tool, punch a 2.5 mm hole, hammer the parts from both sides, then join the fastening mechanism.The photo shows the material as French bull leather and solid brass. The leather is vegetable-tanned, drum-dyed, waxed, full-grain, smooth, with a closed surface; the coating is meant to reduce scratching on the metal.In the size diagram for the '10 mm' labeled variant, the leather-covered cap diameter is 12.5 mm. Its post together with the cap is 4.6 mm long, 2.4 mm in diameter; the counter cap's post together with the cap is 5.5 mm long, 3 mm in diameter. The remaining parts show diameters of 9/9/10 mm; a roughly 1 mm hand-measurement variance is possible.The text calls the cap diameter 10 mm while the photo shows 12.5 mm; the source differs on covered-cap size vs. the nominal variant name, and variant names are not changed to match. SpecificationsProduct groupHardwareMaterialSolid brass and genuine bull leatherColorSaddle brown, red, dark green, midnight blue, mint green, purple, yellow, burgundy, navy, brown, oak brown, Rope Gray — 12 colorsCovered head (per diagram)Covered cap per image: 12.5 mm diameter; post 4.6 mm (cap included) × 2.4 mmCounter head (per diagram)Counter cap per image: post 5.5 mm (cap included) × 3 mmManufacturer's product nameWUTA 4-10-20 Set Genuine Leather Snap Buttons Decorative Snap Caps for Bags & Accessories