Having been a supplier of quality OEM components and products to commercial fitness equipment manufacturers since 2000, we at UMAX understand the needs and desires of gym owners and managers for products with maximum value, durability, function and appearance. UMAX commercial free weight equipment featuring urethane coated solid steel dumbbells and barbells with Dual-Lock and Dura-Edge technology. UMAX offers LifeTime Warranty against Strutural Breakage, bending or loosening and 5-Year Warranty on Urethane Protection to urethane solid steel dumbbells.