Features: Snap button size: The buttons in it is 15mm diameters which has 2 color-black and silver. Large amount: There are 50pcs of buttons in it which is enough for your daily usages. Easy to use: Screw buttons sets are easy to use and effective fasteners for any sewing project the 2 parts could be buckle together. Durable and sturdy: Buttons are made of good quality metal hard sturdy and durable will not easy to get erosion and rust. Wide range of usage: This buttons set of is suitable for furniture yacht tarpaulin baby stroller tent sofa helmet wall and other usages. Specifications: Material: The surface is made of copper + stainless steel screws Color: Silver Black Bronze Size: Nail length: 15mm face buckle diameter: 15mm female buckle diameter: 13.5mm Purpose: Furniture yacht tarpaulin baby bed stroller tent sofa helmet wall nail home decoration etc includes: 50pcs * Screws(50 face buttons +50 female buttons +50 screws) 3 * Installation tools "