nobrand 4 Wheels AB Roller, Multifunctional Advanced Abdominal Exercise EquipmenComfortable Non-slip Grip --- This grip adopts high-quality sweat-absorbent sponge, arc-shaped thickened sponge, which lengthens the grip to be comfortable, non-slip, sweat-absorbent and wear-resistant. Central Bearing Design --- Using high-quality bearings, more flexible, but also exercise control. Using environmentally friendly ABS engineering plastics, no odor, healthier. More Stable --- This 4-wheel abdominal wheel is more stable. 8 back and forth is equivalent to doing 50 push-ups, 80 sit-ups, 35 pull-ups, and one machine allows you to exercise all your muscles. For All People --- The AB wheel roller are suitable for all people, from beginners to advanced. No matter you are adults, men, women, or children, it is your ideal AB and full body exerciser, but it is not advised for people with lower back problems or hernias. Perfect Core Exercise Tool --- Four-wheel abdominal exercise can exercise the upper arm, abdominal muscles, shoulders, chest, back muscles, can be used at home, gym, gymnasium and other occasions. -Color:-Material:-Size: Payment DetailsWe currently accept payment via PayPal only. Once payment is cleared, we will dispatch your shipment within 1-3 business days. Please refer to the "Shipping" tab for more information regarding shipping speed to your destination.Return PolicyAs our valued customer, we will do our best to make sure the product you receive arrives to you on time and as expected. If you are not satisfied with your purchase, please contact us within 30 days of receiving your order to process a return.