This 21 foot Overcenter Buckle Strap with Double Stud fittings on both ends is a superb tie down strap to be used alongside airline track. Slide the stud fitting into the airline track slots to create a strong and durable tie down point. The fixed end of the strap contains a flat snap hook that is sewn 12 inches back for multiple attachment options. The main benefit of an overcenter buckle is it contains a latch system that locks the strap into place. To use, feed the loose end of the strap through the buckle and pull the latch closed. The strap will remain secure and will not come loose. The overcenter buckle strap is made of 12,000 lb industrial grade webbing, creating a heavy duty tie down unit.