Free Shipping! Authorized Teeter Hang Ups Dealer. An upgrade from the Power II, with an additional safety feature: a second ankle lock that automatically drops in when the table inverts past 20 degrees. Neat-o : Available in White or Silver! An upgrade from the Power II model, the Power II GL features a secondary security mechanism in the ankle restraint, as well as a long, stainless steel easy release ratcheting handle. Once the table inverts past 20 degrees, the Gravity Lock drops in automatically, making it impossible to open the ankle restraint system until the table returns to upright position. This feature ensures the utmost safety and security during your motorized inversion experience. By preventing you from reaching down to your ankles to operate the ankle lock, the heavy-duty ratcheting handle makes opening and closing the initial locking bar even easier. ... click to read more