The York Barbell G2 Cast Iron Olympic Weight Plates are thinner than traditional rubber plates and feature an interlocking design. Designed to maximise plate loading on barbells the rubber plates are available in 1.25 KG, 2.5 KG, 5 KG, 10 KG, 15 KG and 20 KG in the following packs; Plate Weight Pack Size Total Weight of Pack 1.25 KG Pack of 4 Plates 5 KG 2.5 KG Pack of 4 Plates 10 KG 5 KG Pack of 4 Plates 20 KG 10 KG Pack of 2 Plates 20 KG 15 KG Single Plate 15 KG 20 KG Single Plate 20 KG Space-saving Design Interlocking plates minimise the space taken on the barbell by the weight plates. Ideal for plate loading machines and barbells.