HARKEN 27mm Control Block Kit, T27KIT Sailboat Blocks & Hardware_Large Standup Base Boot Sheaves are PTFE-impregnated

Sheaves are PTFE-impregnated

so the cheeks won't squeeze or bind the sheave

this larger model 78-17 makes an ideal jackline anchor point

performance-packed engineering remains exactly the same

Designed to handle the high loads generated by modern racing and cruising boats

HARKEN 27mm Control Block Kit, T27KIT Sailboat Blocks & Hardware_Large Standup Base Boot Sheaves are PTFE-impregnatedUsing this kit, you can increase the purchase on an existing 27 mm CB Traveler Car up to a maximum of 4: 1. Proper choice of purchase allows easy adjustment of the car using a single line and no winch. Control Block Kits Kits are available for Midrange cars with ESP controls and ESP end controls to upgrade purchases from 1: 1 to 4: 1.