Sphinx Pro Fixe ball-bearing pulley with fixed flanges are designed for best performance and longevity. The only mini-block with eye for Prusik.
An ultra slim, highly functional pulley. The attachment hole allows full rotation of the carabiner. For ropes up to 13 mm. Prusik minding, the self-locking knot can be installed on one side. Sealed ball bearings for high efficiency and intensive use at high speed. Efficiency: 92%. Aluminum alloy body and wheel, stainless steel axle.