4Fit Nylon Head Harness Neck Strength Head Strap Weight Lifting Exercise Fitness Belt Deluxe quality nylon straps head harness, Extra wide support for added comfort. Essential tool for neck developing exercise, Superior saddle stitching throughout. Fully adjustable heavy duty metal chain included, Tested for the strength and endurance. Recommended for all athletes, Specifically designed those in contact sports. Head harness condition the neck and upper back muscle.