Guaranteed the most effective and comfortable foam roller you will ever own! This foam roller has a unique patented design that cradles your body for quick results with more comfort and ease. Rollga bypasses the bone structure, such as the spine, shins and hips, to unlock hard to access trigger points. Rollga also allows for muscle displacement to ensure the muscle fibers are guided and protected from the damaging shift and pressure. At 18 inches, Rollga is big enough to treat your whole body and small enough to fit in your backpack.