Train your neck and upper back muscles with the French Fitness Head Harness Neck Exerciser. Made from EVA materials, stress-crack resistance and waterproof keeping you comfortable during dips and neck exercises. Features padded and adjustable straps with strong 2.3" velcro fastening system with reinforced stitching for a perfect fit every time. Features four large heavy metal D-rings and a heavy-duty chain for increased durability and strength.