Motorized slider features - set the start and end points at will. Set the motor torque at will. Slip speed (1% -100%) Slip Interval (0. 1-999. 9) stop time (0. 1-999. 9) Photo number (1- 1000) Auto loop. 
High quality camera slider- The 48”, 120cm motorized camera slider is made of carbon fiber with a stable carriage assembly ,slide rails are equipped with multiple 1/4 "and 3/8" Screw ports on both sides and in the middle, compatible with a variety of tripods. 
Tracking shooting - adjust the red knobs on both sides of the camera slider to the upper left and lower right (120 degrees Panorama support time lapse or video shot)-support manual electric two modes. Adjustable foot design to ensure the dolly track could be work on the horizontality.