Togu actiroll wave roller, long, 21″l x 9″ diameter, black the actiroll wave is the first new air-filled and hard regeneration tool for self-massage and myofascial relaxation. The actiroll can be adjusted easily by using the attached hand pump to different hardness in comparison to foam rollers. So actiroll is perfect to reach new progressions in exercises and to be used by different individuals. The air-filling causes an absorbing effect. Therefore it is also allowed and recommended to roll and move even on joints and vertebral bodies.