The BAL TriPod FASTJACK Full-Timer is a hybrid, lightweight king pin stabilizer constructed from aluminum and steel materials. The steel provides superior strength while the aluminum helps keep the weight to a minimum. The carry weight is 20 lbs. The TriPod FASTJACK Full-Timer slips on to the trailer's pin to help support the FASTJACK and uses gravity to assist in setup. No need to worry about uneven ground while setting up as each leg independently adjusts to the ground using the integrated ratchet system. Apply tension as needed and enjoy maximum stabilization. And the manufacturer has included a padlock as well!