Adjustable Bali sterling silver Bali double triple multi strand hook clasp with extender chain - this is a big, bold clasp which has never been used, however one side has two rings, the other has three. There was apparently supposed to be a third ring on the half of the clasp with the chain, and it looks like it was never soldered on. If I was going to use it, I would either solder a ring in that spot, cut off the ring on the other half, or most likely, I would just use it as is and put a dangle on the middle ring on the hook side. Or I'd not use it as a clasp, but use the components for various other creations. This clasp measures just under 3.5" (8.6 cm) end to end when closed using the first ring, and extends to a maximum length of 5.75" (14.5 cm). It is 3/4" (18 mm) wide at the widest part, and weights 10 grams. The ID of the rings on the clasp itself is 3 mm. The chain is substantial; each ring is soldered, 4.5 ID.