Sky Hooks? are manufactured by the original Sun Grip? factory. Their proven reliability and ease of use has made them the leader in the Light Hanging category. Sky Hooks? are an economical version of the Sun Grips?, with a slightly reduced weight capacity. Their patented system pulls tight, locks in place and, when used as directed, will never break, slip or rust. Heat and cold resistant. 8 ft braided polypropylene rope. Carabiner clips provide secure hold. Great for hoisting or securing reflectors, light fixtures, smaller carbon filters and ventilation equipment. Maximum weight capacity is 40 lbs each (80 lbs per pair).