These end pieces are intended for use with the varieties of rhinestone chain (a.k.a. cup chain) that we carry. Choose from end components that fit genuine Swarovski Austrian crystal chain and ends that fit sparkling Czech glass rhinestone chain. Sizes are intended for use with 14pp (2mm), 2.5mm, 24pp (3mm), and 4mm chain. Your choice of raw brass, silver plate, gold plate, and black gunmetal means you'll have the right color of supplies every time. Wholesale prices are available when you buy in bulk.