●Weight: 22.0 lbs (10 kg) x 2 pieces ●Outer Diameter: Approx. 17.7 inches (45 cm), Center Hole Diameter: Approx. 19.7 inches (5 ●Rubber Hardness: 80-85HRC ●(1) High Density Memory Foam Outer Rubber Material: Durable but protects floors It also produces a unique heavy feel due to its high density. (2) IWF Standard: To ensure proper weight, our plates are evenly distributed from -1.5% to +1.5% according to IWF standards. (3) Commercial Strength - Sturdy construction for long term commercial use. (4) Thick Chrome Plated Steel Sleeves: Provides a luxurious and sophisticated look while enhancing the durability of the product ●【360 Days Warranty】If you have any questions about the product, please email us. We will resolve to your satisfaction as soon as possible. PROIRON genuine product, please choose genuine product