WantMall Elastic Adjustable Head Strap Mount Belt with Anti-slide Glue for GoPro HD Hero 1 2 3 Camera Elastic Adjustable Head Strap Mount Belt with Anti-slide Glue for GoPro HD Hero 1 2 3 Camera Material: soft elastic nylon One Size fits All adjustable head strap mount allows for use on head and helmets Anti-skid design back of the strap, making it using more convenient Elastic strap, made of superior quality material, durable and usable