Perfect for at-home workouts. This ab roll wheel has double wheels for robustness. The plastic non-slip grip on the handles and the outside of the wheels ensures a safe workout, that doesn't damage floors, and the constructed thick alloy steel pipe in the interior effectively supports weight. The wheel is easily portable - made to be lightweight and easy to carry. The wheel is 18.5cm in diameter, 30cm in total length (including the handles). The handles are 2.8cm in diameter, and the wheels are each 2.4cm in width.