Improve core stability, strength and balance with this 2in1 massage roller also great for abs strengthening. This roller helps to facilitate a deep and targeted massage. Use during rehabilitation exercises to help aid and speed up recovery. Its 2 in 1 design allows for dual functionality - use the outer roller for abs or remove the outer roller to use the inner foam roller for massage. A versatile roller with added convenience.· Dimensions: 14 x 32 x 14 cm· Weight: 700 g· Skin safe· Tear Resistant· Easy to clean· Outer Roller - ABS Roller· Inner Roller - Foam Roller