Features ●High-Density PVC Material- Constructed of durable material, top and supports up to 440 LBs with impact resistance, can serve you for a long time. Lightweight and easy to carry, assemble and convenient to store. ●Height Free Adjustment- Challenge your workout with 3 settings of adjustable height (4", 6", 8"), you can raise or lower the height according to self-requirements. The Aerobic Step can be safely used on carpet, hardwood, and other types of indoor flooring. ●Anti-slip Design- Platform textured surface is secure, non-stick, non-slip, and shock absorbing, ensure you exercise easily and safely. Also comes with four nonskid feet on each riser to prevent it from sliding during exercise and scratching floors ●Versatile Stepper Platform- Ideal for workout classes, recovering from an injury, or everyday regular workout routines in the comfort of your own home, office or take it with you to your friends' home, to help you keep fit and enjoy your aerobic exercises ●Great Fitness Helper- It can be used to target your hamstrings with alternating lunges and also help you to strengthen your chest and back by pushups. Perfect for beginners and advanced athletes looking to work out at home. Easy to maintain and keep clean Specification ● Shape Trapezoid ●Material: PP & ABS ●Platform Size: 28 x 14.17 x 4" (L x W x H) ●Adjustable height：4" - 6" - 8" ●Thickness of riser：2" ●Weight: 10 LBs ●Weight Capacity: 440 LBs Package Include ●1 x Stepper; 4 x Risers