Improved with internal metal gears and aluminum crimp sleeve instead of knots. 1/8" rope ratchet rope for hydroponic indoor grow lights. 2 supports 150 pounds Easy height adjustment just by pulling rope, Press lock to lower and extend rope Each ratchet holds 75 pounds, both ratchets together holds max of 150 pounds Hooks are made of Stainless steel, Body and ratchet are made of Nylon, Rope is Polypropylene Use it to hang lights to desired height, Hang Kayaks, bikes or anything up to 150 pounds Great for quick tie items in truck bed. Holding down tarps, car and boat covers