SIZE: as the picture shows. Quantity: 4 Pcs style buttons, 16 Pcs jeans buttons MATERIAL: Made of premium metal, that is sturdy, durable and not easy to get erosion. It won't bend or shatter under finger pressure. EASY TO USE: hooks and eyes sets are easy to use and effective fasteners for any sewing project; The 2 parts could be buckle together side by side. The no-Nail adjustable waist buckle, the waistband can be changed to large and small, detachable, and the adjustment is firm, Tool free, no-sewing, removable and reusable. WIDE USES:This pants waist button can be applied for jeans, skirts, pants, collars, etc., and it is also suitable for women, men, teenagers, and adults, we can help you to wear most kinds of pants you like.