Arb-A-Wrap XP Large. Aussie Made with new extra heavy wall thickness and zinc plating! The best in the market. Used for lowering heavy branches or logs, the Arb-A-Wrap XP is a friction device that enables a single person to control loads many times their own weight. By taking wraps with the rigging line around the Arb-A-Wrap, friction is applied to the rope; the more wraps taken, the more friction applied. Compared to the traditional method of taking wraps around the trunk of the tree, the Arb-A-Wrap provides more consistent friction that doesn t vary from one tree to the next, and can be tied off to allow the worker to let go and walk away from the rope. This latest design is stronger and features a T-section bar to eliminate any rope loss.