Designed To Develop Total Core Strength, The Adidas Ab Wheel Is A Great Addition To Traditional Core Training. Allowing You To Perform ‘Rollouts’, The Wheel Engages The Entire Core With Padded Foam Handles And A Textured Rubber Grip For Comfort And Stability. The Roller'S Padded Foam Handles Allow A Natural And Comfortable Grip When Tightly Grasping The Wheel Textured For Added Grip, The Wheel'S Rubberised Surface Maximises Traction And Stability As You Roll; Promoting Correct Form And Safer Reps With An 18 Cm Diameter, The Ab Wheel Is Ideal For All Abilities; The Wheel Can Be Used For Full Rollouts But Is Also Ideal For Rolling From The Knees To Build Initial Core Strength