Features: 1.Installation method: firstly punch the material and then punch the four-button, wherein the panel and the female buckle are a pair, and the bottom buckle and the male buckle are a pair. 2.Widely used in luggage, clothing, tents, handbags, shoes and hats, notebooks and other products. 3.These snap buttons are made of pure brass,very durable. 4.There are 3 sizes and 3 colors for you to choose from. 5.Professional and practical design with beautiful appearance,also can be a decoration for your cloth. specification: Installation method: firstly punch the material and then punch the four-button, wherein the panel and the female buckle are a pair, and the bottom buckle and the male buckle are a pair. Widely used in luggage, clothing, tents, handbags, shoes and hats, notebooks and other products. These snap buttons are made of pure brass,very durable. There are 3 sizes and 3 colors for you to choose from. Professional and practical design with beautiful appearance,also can be a decoration for your cloth. A set consists of 4 parts: panel, female buckle, male buckle, bottom buckle. : Material:Brass Color:Silver/Bronze/Black(Optional) Size:(Optional) 10mm / 0.39in 12.5mm / 0.49in 15mm / 0.59in Package List: 50 set of Snap Buttons Note: As different computers display colors differently, the color of the actual item may vary slightly from the above images.