Product DescriptionSize: 18*18*24cmColor: blue, yellowmaterial: plastic,Package content: 1*AB roller 1.SCULPT YOUR BODY LINE: AB roller acts as your personal fitness trainer - helping you to build stronger and bigger six pack abs, burn calories, build muscle and improve your overall endurance. 2.SUPERIOR QUALITY: Train with one of the most effective pieces of home exercise equipment. It is made of strong, durable material to ensure it withstands even the most intense workout sessions. The ab wheel is made of strong non-slip rubber and durable PVC. Ensure safety and comfort. 3.DOUBLE ROW ROLLERDouble roller design, to suit your right and left abdomens to exercise the muscle. 4.SAFE MATERIALSafe plastic material for skin and boday.Soft EVA handler cover is very soft to keep your hand from rubbing.So you can do exercise as long time as you can, no worry the adverse reaction. 5.EASY ASSEMBLING DESIGNIt is EASY TO ASSEMBLE, tight the two handshakes IN THE OPPOSITE DIRECTION,AND MORE IMPORTANTstretching in the direction according to the ARROW on the productotherwise the one end of handshakes is loose.