Great looking silver colored chain made of paper clip links alternating with geometric links. There are a total of 11 geometric links; the eleventh link is formed so that a pendant or object can be hung from it (or not). The chain measures 30 inches in length and does not have an opening - it is long enough to slip over your head. Each of the paper clip links is 3/8" in length and the geometric links measure 5/8" long x 3/8" wide. This chain does not test positively for sterling silver.