Package Content: 2Pcs x Crane pulley block; product Name: Crane pulley block; main material: 304 stainless steel
Weight: 114G; sheave size: 15 x 10mm/0.59" x 0.4"(D*t); sheave quantity: double Sheaves
Overall size: 59 x 30 x 21mm/2.3" x 1.2 inch x 0.83"(L*w*t); main Color: Silver tone
Battery included: no; for rope Dia.: 6mm/0.24"
Swivel eye inner size: 14 x 12mm/0.55" x 0.47 inch (L* w ); swivel eye thickness: 3.5mm/0.14"
A crane pulley block is a kind of hoisting tool, also called a Sheave, is a mechanism composed of a wheel on an axle or shaft that may have a groove between two flanges around its circumference. A rope, cable, belt, or chain usually runs over the wheel and inside the groove, if present. Pulleys are used to change the direction of an applied force, transmit rotational motion, or realize a mechanical advantage in either a linear or rotational system of motion.Designed for use with rope or cord in indoor and outdoor applications, but only pulley here, rope is not included.