Installation Method - Drill the material first, then the four button button. The panel and the female loop form a pair, while the lower loop and the male loop form a pair. 50 snaps---There are 3 sizes and 3 colors for you to choose.Each set consists of panel, female buckle, male buckle and bottom buckle.Complete set can meet all your needs. and sturdy---These snaps are made of pure brass, very and can prevent rust or corrosion. Professional and practical design with beautiful appearance, can also be a decoration for your fabric. Quality Guarantee --- We provide one year warranty, 30 days refund, 7x24 hours email support. If you have any problem, please feel free to contact us, we will try our best to solve it. Wide Range of Use --- The snap closure kit can be used for DIY leather, sewing clothes such as T-shirts, jackets, overalls, backpacks, women's bags, wallets, belts, cotton padded clothes, down jackets, jeans and soon.