The Right Size -- The length of this lock clasps is 18.5mm(0.73inch) the width is 16mm(0.63inch) and the thickness is 6.5mm(0.25inch) the suitable size to match your jewelry 925 Sterling Silver -- Slip lock clasp is made of is made of 925 sterling silver more shiny than ordinary materials adding beauty to jewelry details also not easy to fade. Tip: Please try to avoid contact with water to extend glitter Design Your Unique Jewelry -- You can use this sterling silver lock to design your necklace or bracelet our lock is easy to operate it is essential in your jewelry box Easy To Attach -- This clasp is in the shape of a long tube with a certain number of chain loops on each side to which you can add bracelets or necklaces and you can take all layered necklaces on and off at the same time Wide Range Of Applications -- This brass box clasp is suitable for making multi strand necklaces bracelets or other jewelry crafts and is also a good choice for completing woven jewelry bead weaving projects and more