This ratchet pulley is designed for Robobrew, BrewZilla users, and BIAB brewers. When you're brewing, use it to lift your grain bag or malt pipe and let it hang while the wort drains. It's made of 3/8' polypropylene rope and heavy - duty carabiner clips. It can handle a maximum load of 250 lb and has about 6.5 ft of workable length. It's also compatible with Gen 3 and later Robobrew / BrewZilla models and our BAG29 mesh grain bag.