Cow-Life Cattle Rub is practically labor-free. Simply hang the rub and pour 4 gallons of diesel insecticide mixture along the length of the rub for long-lasting fly relief. Made of polyester and acrylic the rub soaks up the oil solution but is virtually rot-proof. Cow-Life features a polypropylene rope with a breaking strength of 2700 lbs. that runs the length of the rub. Rub is 10' long by 4" in diameter and weighs 15 lbs.