Notch Portawrap, Medium, Stainless Steel

The Portawrap is a lightweight, compact friction device for lowering heavy loads under control. Designed by arborists Scott Prophett and Norm Hall in the early 1990s, it replaces wrapping the running end of the lowering line around a nearby tree, so the wrap tree is not damaged and the friction is predictable every time. It wraps and unwraps in seconds between loads. The Notch version is rust-proof stainless steel with a seamless main tube for a high strength-to-weight ratio, chamfered edges on the tube and posts, and a tree-protecting cap that prevents gouging of the trunk.

The medium size takes rigging lines up to 5/8 in (16 mm) and weighs about 4.25 lb. Strength and rope specifications are marked on the device. Anchor it to the base of the tree with a rated sling and add or remove wraps to suit the load.