[Able to Adjust Size]: The size of the weightlifting harness can be adjusted easily to fit your head size, giving you maximum comfort. [Comfortable and Reliable]: The neck harness uses reliable diving fabrics and nylon materials to fit your head, forehead and chin perfectly, giving you comfortable wearing experiences. [Useful Neck Training Tool]: The multifunctional neck strengthening harness is effective in increasing neck strength and recovery after workouts that require gradual muscle buildup. [Widely Applicable]: The Neck Trainer works well for your complex exercises like weighted lying neck extensions thanks to the D-ring design on the sides of your ears and above your forehead. [Improve Neck Strength]: The neck exerciser is useful for improving neck muscles and overall stability, football players, boxers, wrestlers, etc.