Description:Designed for use with rope or cord in indoor and outdoor applications, but only pulley here, rope is not included. Features:Main Material: Zinc Alloy;Sheave Size: 25*9mm (D*T) ;Overall Size: 57*25*28mm (L*W*H);Sheave U width: 7mm/0.27inch ; Package Content: 2pcs x Crane Pulley Block;