Oileus AB Roller Wheel for Abdominal Exercise, Core Workout Equipment with AutomTWO WHEEL DESIGN. Two wheel built-in spring, generate resistance when you rolling out, provide assistance on the way back, more sturdy than one wheel design, much easier to use than the standard wheel ab roller SUPER WIDE ROLLING BELT. Super Rolling belt provide excellent overall rolling motion stability to build your Abs. Direction marks are on the belt, you will find the right way to roll out and come back. PREMIUM QUALITY. Solid and durable ab roller wheel made of high quality materials, ergonomic Handles is comfortable and the rolling belt will never cause any damage to the floor, not like other cheap ab rollers, our product aim to last a life time. EASY TO ASSEMBLE. Just insert the shaft into the wheels and you can start your core training. you can also take it apart for better portability. HIGH QUALITY MAT. High quality knee mat is included in the package along with the abdominal wheel. 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.