Twister Tie Downs are a screw like apparatus that the installer twists into the ground using our 28 Metal T-Bar which is included in every starter kit.Twister Tie Downs incorporate many solutions to problems that other tree anchoring systems face. These include a Hi-Vis yellow tensioner that does NOT loosen when properly installed and eliminates the need for warning tape. Olive drab U.V. stabilized multi-filament polypropylene webbing that wont rot and a Metal T-bar that eliminates the need for hammers driving rods etc.