The 100kg Olympic Disc Kit comprises the following: Body Power Cast Iron Olympic Discs – 10kg (x2) (Individual product code: CNOD1000) Body Power Cast Iron Olympic Discs x2 – 20kg (x4) (Individual product code: CNOD2000/2) Virtually indestructible, these Olympic Plates are machine bored for a precise fit, complete with a satin black enamel finish and a 2” diameter hole for Olympic Bars only (not included). Disc dimensions are as follows: 10kg: 10″ diameter x 1.5″ thickness 20kg: 17″ diameter x 1.5″ thickness