*These buckles are made of quality metal which is , sturdy and lightweight, making them for long time usage *The jeans buttons are incredibly easy to apply as they do not require any sewing. snap the button and back pin together for ultra-quick fitting *These tri-glide slider buckles can be used to adjust the length of webbing straps easily with a single motion *They are great for DIY repair jobs on your damaged clothes or if you're planning on creating some new fashion lines *The accompanying jean buttons are made from rust-free brass. They measure 17mm and are strong *As well as being perfect for dungarees these triglide slides can also be used for maternity dresses, kid's overalls, bid overalls, jumpsuits, jackets, jeans, and even leather bags *This amazingly versatile piece of hardware is also in a variety of crafting applications such as in strap goods like dog collars, belts, etc