EXCELLENT VALUE FOR MONEY: free knee pad, easy to install and disassemble, unlimited scenes, available , office, gym, simple exercise, efficient results. 3.55inch ULTRA-WIDE AB ROLLER:ensures the balance and stability, as it does not deviate left and right. Meanwhile, it can achieve the desired exercise effect, while avoiding unnecessary injuries. QUIET OPERATION:Rubber cotton handle,comfortable grip, soft , quiet operation, so that you enjoy exercise with a preferable experience. HIGH-STRENGTH STAINLESS STEEL:shafts with a maximum weight of 600 pounds for your safety, easy assembly and easy workout - both and in the gym. ERGONOMICALLY DESIGNED:grips prevent discomfort in your hands, so you can give 100% to every workout. Removable handles allow for compact storage and easy transport. Why : First off, the wheel is much larger which allows us to have better balance and the ability to swing to our torso left and right more for those obliques. Overall, You feel get a better ab workout in with this than without, and the knee pad that comes with this is a knee saver. The quality of this wheel is pretty good, you do like the metal bar that supports the handle versus the plastic that You've seen in others. The grips are nice too, not fully foam. Colour:Black Material:plastic Package Contents: 1 x Ab Roller Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.