This precision work support can be locked and unlocked with one-touch operation and keeps stable support capacity. The support helps keep accuracy of the workpiece height and can be used by remote control. Turn the knob 45 degrees left or right to reach unlocking or locking position. The body is made from anodized 5052A aluminum. The piston is made from SK95 steel, quenched and tempered, with a black oxide finish. The knob is made from 303 stainless steel.