About this item Velcro/Vinyl/ Hook and Loop Imported MADE IN USA – HEAVY DUTY Oversized hook and loop sections allow for adjustment to any length from 10″ to 36″ Heavy duty vinyl strap rated to support over 500 pounds – easily mounts all heavy punching bags. D-ring and oval screw lock system makes setup and removal quick and easy Universal system – fits all punching bags, including water and spring-mounted bags