All plates are a true 450 mm diameter with a 2″ stainless steel center insert shaped to the bumper to properly distribute the force of the bar when dropped. Weighing within +/- 0.5LB of the stated weight. Each batch of 25LB – 55LB wright bumper plates are tested to exceed 20,000 drops from 6 feet. 10LB and 15LB are tested to 7,000 drops. Not to mention, dead bounce allows for low noise workout. These best-selling bumper plates will be the best investment for your box or home gym, Satisfaction Guaranteed!

• Bar: Olympic/Power/Functional Fitness/Multipurpose
• Material: Recycled Rubber
• Insert: Fitted Stainless Steel
• Insert ID: 50mm (1.9685 inches)
• OD: 450mm (17.7165 inches)
• Weight Tolerance: 2% +/-
• Performance; Minimal Bounce
• Durometer: 75-80
• Color: Black/Color
• Guarantee/ Warranty: 3-year warranty on the 25, 35, 45, 55, and 100LB; 180 day on the 5, 10, and 15LB plates
• Made in the USA: Yes