Pearl Brooch Tightening Waistband Pin Opening Bottom Metal High-Quality Korean Style Brooch Nail-free model: It can be disassembled at will and can be used repeatedly, with more flexible usage. Screw type: Need to use tools to fix and install, it is more comfortable to use. material: metal Structure: snap Shape: round Scope of application: jeans, shoes, hats, cotton clothes, shirts, suits, windbreakers, belts, backpacks, knitwear, down jackets, cheongsams.