[PENDANT CLASPS]: The bails for jewelry making are wide enough to pass through a string, cord or chain to become a pendant. The width can also be adjusted by squeezing the ring and will fit most necklaces.[BAIL HOOK NECKLACE CLASPS SIZE]: 3 different sizes in total 12pcs x pendant charms chain connectors: 0.12x0. 28inch(3x7mm), 0.16x0.3(4x8mm), 0.24x0.35(6x9mm). All packed in a plastic box, enough for your spare and replacement, keep a long time use.[S925 STERLING SILVE CLASPS]: This jewelry connectors is made of 925 sterling silver, which not only ensures an elegant appearance but also makes you feel comfortable to wear. Sensitive skin friendly, make life easier with our pinch clasp bails. It allows you to easily wear your favorite jewelry.[EASY TO USE]: Open the bails and apply a small amount of pressure to close the bails and push the prongs into the pre-drilled holes in the pendant, and the clip on the top makes it easy attach on metal chains or cords.[WIDE APPLICATIONS]: The pinch bails are great for DIY your special and unique jewelry. The charm clasp can be used to attach beads, crystals gemstones and pendants to DIY necklaces,bracelets, costume and room decorations. They can also be used to DIY gifts to mom, girlfriend, friends on Mother's Day, birthday, Valentine's Day, Thanksgiving Day, , etc.