EVERYONE'S FAVORITE PULLEY......Just got better. The Triple Attachment Pulley forms an integral part of the renowned Hitch Climber System and is a firm favorite of working at height professionals the world over. The three hole construction makes rigging and organizing much simpler and allows for off-center hanging to minimize rope to pulley friction. The updated design features sealed bearings in place of bushings, offering improved efficiency. Improving ease of use, the new U shape (rather than V shape) above the sheave increases volume. This means rope feeds in more easily when used in hitch climber system.