The PSH Dog Bones allow you to add an additional 2 feet to your stock strap.  These are designed to match the either the stick version or platform/treestand version.  These install by girth hitching one end of the dog bone to the green banded side of your PSH.  The other end of the dog bone secures to your stick, stand, platform in lieu of the green banded portion originally used on your PSH.  Each one is made from orange colored amsteel to differentiate from the dog bone and your original PSH.