ISC Mini Block for 1/2" Rope KP-21 If your climbing spikes were

If your climbing spikes were purchased after January of 2011

Multiple Redirects — Smooth retrieval even with complex rigging setups

2 1-liter supply bottles

Is this compatible with all saddles

ISC Mini Block for 1/2" Rope KP-21 If your climbing spikes wereAt approximately half the size of the standard small rigging pulley and weighing in at only 1 lb., this mini pulley fits in the palm of your hand. The mini block offers a highly impressive strength to weight ratio with an 85kN (19000lbf) MBS and a WLL of 17kN (3800lbf). The Pulley plates are made from hot forged Aluminum and it is this manufacturing process which allows such a compact pulley to boast such great strength and dynamic load bearing