Bluemoona 20 Pcs - Solid Brass Screw Head Screw Back Feet 11mmx6mm Plane for Purse Handbag Nailheads Spike Spot Stud Material: solid Brass Size:Diameter 11mm(0.43") Heigth:5.5mm(0.22") Screaw: Diameter 10mm(0.4") Package Quantity:20 sets Button Stud (Screw & Stud) Use for decorating your bags, belts,handbags, leather bracelets, shoes, Hats, and All kind of art and leather Crafts DIY