Silver plated. Starter kit. Well, more of a finishing kit. Two end caps - 4.3 mm interior size. 9 mm toggle. 2 x 5 mm jumprings. Can be used with other stringing methods, i.e. viking knit, multistrand, fabric, crochet, but particularly nice for Kumihimo braids.
Hole is at each end of the curve. By the each.