Compact double pulley for block-and-tackle systems. The large connection hole accommodates two carabiners. Prusik minding, the self-locking knot can be installed on both sides and both wheels. Self-lubricated brass bushings are the perfect solution for light applications at low speed. For ropes up to 13 mm. Efficiency: 80%. Aluminum alloy body and wheels, stainless steel axle. Certifications: EN 12278 Ropes up to 13 mm Maximum Breaking Load: 24 kN Working Load Limit: 4 kN Width: 61 mm Length: 102 mm Thickness: 49 mm Weight: 170 g Self Lubricating Bushing Recommended for : General Use, Self Rescue