High-strength, multifunctional pulley Self-lubricated brass bushingsÊwith 90% efficiency Aluminum alloy body and large sheave, stainless steel axle Prusik-minding For ropes up to 16 mm A high-strength, multifunctional pulley featuring a large sheave for high efficiency. The Naiad is ideal for high-load haul systems and complex operations. It features a main attachment hole that accommodates three carabiners, two secondary holes on the sides for positioning and a large lower becket hole. Self-lubricated brass bushings are perfect for light applications at low speed. Prusik knots can be installed on either side (aramid cord suggested).