Ultra wide ab roller with built in resistance and ergonomic handles to help maximize results of ab roll out exercises
Interior kinetic engine uses a carbon steel spring to provide resistance and amplify abdominal and arm workout
Ultra wide wheel tread offers stability when carving left, right or center for targeted work on obliques.DO NOT use if you are over 300 lbs
Ergonomic hand grips are angled to activate arm and core muscles; Handles are removable for easy storage and transport
Includes high density foam kneepad for superior comfort; 1 year manufacturer warrant