Designed for use with Clamping Swivel Motor Mounts come in 3 sizes (22, 32 and 37mm ID). When attached to the 555140, these motor mounts become extremely versatile and can easily attach to other Actobotics components. The 555140 comes with a ¼-20 socket head screw and a lock-nut to attach a swivel motor mount. By loosening the ¼-20 screw, the mount can be rotated to adjust the position of the motor. To adjust the height of the motor, simply loosen the pinch bolt found on the clamping swivel motor mount and slide the motor body to the desired position.