[150PCS OPEN JUMP RINGS]: You will receive 150pcs jump rings, can fully meet your need of different styles handicrafts, you can use them to DIY various gifts for friends and family, as well as your own custom designer jewelry.[OPEN JUMP RINGS SIZE]: 4x0.5mm. Inner diameter: 2.5mm. Open jump rings are packed in a plastic box to avoid damage or bent in storage.[925 STERLING SILVER JUMP RINGS]: Made of high quality 925 sterling silver, these rings are strong and durable enough to make chainmaille designs or for connecting jewelry components. Great workmanship with the jump ring, smooth surface and edge, will not scratch your hands and stuffs.[RINGS FOR JEWELRY MAKING FINDINGS]: Jump rings are the perfect way to keep your designs together, so you will always want these supplies on hand. You can use them to link findings together and in so many other ways. They feature a versatile size and a sturdy gauge, so they are sure to become a staple in your beading supplies.[DIY FAVORITE]: Jewelry making jump rings are great for DIY your special & unique jewelry, Excellent for suspending small items from delicate necklaces, bracelets, earrings, anklets. These open jump rings are not only for jewelry making, but also for repairing jewelries, necklaces, bracelets, craft projects etc.