The Best Weight to Ruck Ruck PlatesA(R) are compact and fit seamlessly in the RuckerA(R) and Ruck Plate Carrier(TM) for superior stability. They are made to meet our high standards of quality and craftsmanship and are the best way to ruck. Ruck PlatesA(R) are sold individually. Features Break strength of approximately 90,000 lbs Powder-coated matte black (rust-resistant) Ergonomic, rounded edges and handle openings Super-wide grab and go handles Workout without a ruck Perfectly compatible with RuckerA(R) and Ruck Plate Carrier(TM) Pound (LB) and Kilogram (KG) weight conversion engraved into both sides of the plate GORUCK Ruck PlatesA(R) are patented. For more information, visit www.goruck.eu/patents. Specs + Materials Primary Material: Powder Coated Ductile Iron Ore 10LB Dimensions: 9" x 11.5" x 0.52" 20LB (Standard) Dimensions: 9" x 11.5" x .92" 30LB (Standard) Dimensions: 9" x 11.5" x 1.38" 45LB Dimensions: 9.5" x 15" x 1.38"