?30" Adjustable Aerobic Stepper?: Goplus 30" adjustable aerobic steeper will help you work on your coordination as you improve your cardiovascular fitness. The aerobic step can be used to target your hamstrings with alternating lunges and also help you to strengthen your chest and back by pushups. ?High-Denisty ABS Material?: Constructed of ABS material. Feature with impact resistance, top and supports up to 550 lbs, this aerobic stepper also great for workout classes and regular home use, you can work out anywhere in your home, office or take it with you to your friends' home! ?Height Free Adjustment?: Challenge your workout with 3 settings of adjustable height (4?, 6?, 8?). Up to 8? of adjustable height for level changes. Free assembly and disassembly. You can raise or lower the height according to self requirements ?Anti-slip Design?: Giantex Aerobic stepper design with honetcomb black technology surface, Better skid resistance compare with others. Also comes with four nonskid feet on each riser to prevent it from sliding during exercise and scratching floors ?Versatile Stepper Platform?: Provides excellent traction on any floor, Each Riser Size: 12?? x 4?? x 2?? (L x W x H).Use it in the comfort of your own home or take it with you to your next outdoor, aerobics class. It is highly recommended when u want to keep fit and enjoy your professional aerobic step exercise. The stepper is ideal for work out classes or regular home use. Either at home or in the office, u can invite your friends or family to take exercise together to keep healthy and fit. Three levels that can be stackable are very convenient to meet various needs. Aerobic Step will give u a unique and professional aerobic exercising experience. Feature Durable platform Convenient for storage Lightweight and easy to carry and assemble Optional for regular home use and work out classes Perfect for indoor and our door use Provides excellent traction on any floor Shock absorbing, non-stick, non-slip surface Up to 8?? height adjustment to change levels easily Specification Color: black gray, red signal Material: ABS Platform size: 31?? x 10.5?? x 3.5?? (L x W x H) Adjustable height: 4??-6??-8?? Each riser size: 12?? x 4?? x 2?? (L x W x H) Weight capacity: 550 lbs Unit weight: 8.8 lbs Package includes: 1 x platform, 2 pairs of risers