These spring ring clasps are made of good hardness stainless steel material, have good rust and corrosion resistance, not easy to break or deform. With electroplating surface treatment, the clasps can be used for a long time without tarnishing and fading. Push buckle design, it can be easily pushed by the spring to connect and detached any charm without any tools, the strong ring buckle ensures the clasps stay connected without falling fall. The simple and stylish design can meet your DIY daily handmade need. With a matching connector, other components can be easily fixed without other clasps such as lobster clasps. Suitable for leather, jump rings, chain, and other materials to create an attractive and unique design. Widely used for DIY jewelry making, great for making necklaces, bracelets, anklets, bag ornaments,and more. Also perfect for adding several charm and suspending small items to bracelet, repairing your broken jewelry, or creating handmade DIY accessories crafting. Material: Stainless Steel Finish: Electroplating Total Size: 6mmx3.3mm/0.24"x0.13"(Outer Dia.*Inner Dia.) Ring Hole Size: 2mm/0.08" 40 Pcs x Spring Clasps