High strength multifunctional pulley for block-and-tackle systems and complex operations. Features a large wheel, main attachment hole that accommodates three carabiners, two secondary holes on the sides and a large becket. For ropes up to 16 mm. Prusik minding, the self-locking knot can be installed on both sides. Sealed ball bearings for high efficiency and intensive use at high speed. Efficiency: 97%. Aluminum alloy body and wheel, stainless steel axle.