Thick, brightly colored, flame-retardant rip-stop nylon features a reinforced mesh center, allowing ample air flow and preventing balls from rolling through the middle. Tough, 1/2" thick perimeter rope adds overall strength and provides a secure gripping area. Includes an oversize bag for convenient storage and transport. Optional double-stitched handles won't tear in use. Meets ASTM F963 Flammability Standard.