4 Size: Ring about 16mm-27.5mm long, 12mm-19.5mm wide, 2mm thick, 3mm hole. Bar about 18mm-30mm long, 7mm-10mm wide, 2mm thick, 3mm-5mm hole, can be used with accessories to make jewelry. Quantity and Color: In total you will get 40 sets stainless steel color ring toggle and bar clasps, they are enough for your daily use and you can share them with your family. Material: These toggle clasps made of 304 stainless steel, durable, lightweight and easy to preserve, manufactured with safe materials, anti-rust stable and durable, wont do any harm to your skin. Design: This toggle has a simple design to go with an piece of jewelry, it is the perfect size, it is not too big make your design unbalanced but still easy to for your hands to work. Wide Application: These are great for necklaces that close in the front and add a lovely embellishment, they are good for those who may have difficulty putting on a necklace with a traditional small lobster clasp.