Loading... Please wait...This is a Sterling Silver double ended clasp that is 3/4" (20mm) in length, and is decorated with Sunflowers. It turns almost any chain of 3.5mm width (or less) into a chain that will take european style charms. One end (the small one)clips to the end of the chain and is only undone when you want to change out your beads. The other end you use as you would your regular clasp.