Echo Strength - Black Bumper Plate Our standard black bumper plates are crafted from 100% virgin rubber, making them an excellent choice for home gyms and light-use commercial settings. Here's a detailed description: Construction: Made with durable steel inserts that are more reliable than common brass inserts, ensuring a secure fit and longevity. Material: Produced from high-quality virgin rubber, providing excellent resilience and longevity. Usage: Ideal for safeguarding your investment; recommended to be used on rubber flooring with proper technique. Note: 10lb plates should only be dropped when paired with larger plates. Weight Options: Available in 10lb, 15lb, 25lb, 35lb, and 45lb sizes. 260LB: 10LB*1 Pair, 15LB*1 Pair, 25LB*1 Pair, 35LB* 1Pair, 45LB* 1Pair 350LB: 10LB*1 Pair, 15LB*1 Pair, 25LB*1 Pair, 35LB* 1Pair, 45LB* 2Pair Plate Widths: 10lb: 7/8" 25lb: 1 7/8" 35lb: 2 5/8" 45lb: 3 1/4" Weight Accuracy: Each plate comes with a precision tolerance of +/- 3%. Pricing: Plates are sold in pairs. These bumper plates are perfect for strength training routines, offering durability and performance at a great value.