Prioritise core strength with this Pro Ab Roller Exercise Wheel with Kneeling Mat Extra wide ab roller wheel provides more stability than the standard model Get a good grip with the foam coated handles on either side and TPR tire Stainless steel core can safely bear your weight as you exercise Doesn't just work out your abs - uses your arms and legs as well. Comes with a foam exercise mat to protect your knees when using the wheel Wheel measures 32.3cm in diameter and 19cm in width Roll up, roll up. Save 50% on this Pro Ab Roller Exercise Wheel with Kneeling Mat