Tree climbing requires a lot of moving around while on rope, which usually means a lot of twisting. If you’re like a lot of climbers, the worst time to untwist your line comes when you’re in the most precarious positions and, although rarely life threatening, it certainly can be inconvenient. Petzl developed these precision swivels to relieve just such twisting. You’ll really appreciate the smooth swivel action of sealed ball bearings inside the forged alloy body, for years to come. The Large swivel is designed to accommodate two-person loads in rescue situations, and can have up to three connectors attached in the ends.