Superb set comprises – x Solid Standard Curl Bar, 2 x 5kg standard Tri-Grip Weight Plates, 2 x 10kg Standard Tri-Grip Weight Plates and a pair of standard spring collars. Our Body Power cast iron plates are made to an incredibly high standard, with all products undergoing strict quality control. The casting quality, surface treatment and weight tolerance must meet a set standard of quality. Some of the cheaper alternatives that are available on the web are inferior products, which are not constructed to this same standard.