Design: We stainless steel spring buckles, which can be designed with necklaces or bracelets. They can help connect your favorite necklace or bracelet. With the help of buttons, DIY will become simple and interesting Robust and Durable: Our spring rings are made of high-quality stainless steel, with a plated and polished surface and high gloss. It is not easy to fade, deform, and break after long-term use. They are lightweight, beautiful, and durable Easy to Use: Built-in spring hook, easy to use. Just press, quickly connect and release, and it will automatically close, opening and closing smoothly. It is easy to operate and can quickly and safely connect various fixed points. Usage: There is a small spring in the ring. When a small lever is pulled back, the spring will be compressed, revealing a gap in the ring. Our buckle comes with a connecting ring that can connect your favorite pendants or other accessories to better assist you in completing DIY works Size:about 0.24 inch(6mm) in diameter, 0.06 inch(1.5mm) thick, hole: 0.07 inch(1.8mm), 20pcs,the appropriate size is sufficient to meet your DIY process production project