At each end of the slider, there are 1/4″-20 and 3/8″-16 threads and a rosette for attaching various accessories. If you will be using the slider on the ground or tabletop, the slider features built-in legs with height-adjustable feet to accommodate non-level terrain. For compact storage, the legs fold up against the side of the slider, securing in place using thumb knobs. Unscrewing the knobs completely allows you to detach the legs completely and swap out the 32.6″ rail for separately available 15.5″ or 47″ rail lengths. Features Roller Bearing Sliding System 33 lb Load Capacity on Flat Surfaces 28″ Travel Distance 32.6″ Total Track Length 75mm Ball Base with 1/4″ & 3/8″ Threads Spring-Loaded Friction Adjustment Knob Folding Legs with Height-Adjustable Feet Interchangeable Rail Lengths 3/8″-16 Tie-Down Screw Padded Carrying Case
