925 Sterling Silver: the oval jewelry clasps are made of 925 sterling silver high quality a good choice for those have sensitive skin comfortable to wear keep shining. Good quality best choice for gift. Ensure an elegant appearance but also makes you feel comfortable to wear. 2 Sizes Oval Spring Clasps: package includes 2pcs silver oval spring buckles in 2 sizes--14x10mm 16x12mm; each size 1pc; 2~2.5mm in thickness loop hole 1mm. Practical and not outstanding the perfect embellishment for jewelry making. Easy to Use: the spring gate rings can be used to suspend pendants and hang on necklaces with spring design push gate-lever inwards to open easy to close and open multi-functional and versatile for DIY jewelry making projects. Simple Design: the buckle clasps are in simple style making them highly versatile stylish and secure clasp work well for a strand of vintage pearls wearing in different ways multi-functional and versatile for DIY jewelry making projects. Wide Applications: the jewelry clasps can extend or clip a charm or pendant onto a chain. Usually used for making bracelets necklaces ankelets waist chain jewelry and DIY crafts making. Make your crafts colorful and show your personal style.