Roller with swivel-locking-pad top Roller with rigid-pad top pictures Three-point moving system details Roller with swivel locking pad top offer great capacities and low profiles, one set capacity can be reached 1000t. Roller with swivel locking pad top can turn direction and can locked the direction too. Means can swiveled and can just go straight. Roller with swivel locking pad is the upgrade of the ct crawler type roller skids. Ct crawler type roller skids just can go straight, cant be swiveled when moving , if want to turn direction, must be need the hydraulic toe jacks help. Seaworthy