About This WHAT’S INCLUDED – 10lb pair, 15lb pair and a 25lb pair of PRO bumper weight plate in black; Designed to accommodate Olympic barbells (with 2-inch center hole) CONSTRUCTION – Proprietary manufactoring method coated in virgin and recycled rubber with a reinforced steelhub; All weights are uniform in diameter; 30-day manufacturer FEATURES – CAP's Proprietary construction offers a balanced weight; Rubber coating prevents damage to equipment; Steel insert offers a secure fit and prevent damage to the bars. VERSATILE – Extremely durable and odorless design makes these great for any gym; Add weight plates to any fitness routine to increase calorie burn and muscle mass. **This set ships in multiple boxes, they may arrive on different days. **This set ships in multiple boxes, they may arrive on different days. Overview Item Weight : 52.54 Pounds Material : Cast Iron, Rubber Brand : CAP Barbell Color : Black Manufacturer : Cap Barbell, Inc.