The DRYAD is a compact, double pulley for block and tackle systems. A large connection hole accommodates two carabiners. Designed for ropes up to 13 mm. 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. Constructed with aluminum alloy body and wheels, as well as a stainless steel axle.