The support ? also known as a load bar ? guarantees a reliably secure hold: thanks to its extremely stable construction for a load capacity of up to 350 kg ? depending on the support size and extension length - thanks to the rubberized PVC contact surfaces at the top and bottom - thanks to the anti-slip protection integrated in the handle. The support can be precisely adjusted to requirements and safely released: By fixing in three steps - to preset the ceiling support, the release button is pressed and the telescopic inner tube is extended to the desired length. Fine adjustment is carried out by operating the pump lever until the contact plate of the support rests against the workpiece. Then turn the handle clockwise until the desired holding force is reached (note the max. load capacity) - by releasing in two steps - first turn the ceiling support anticlockwise. As soon as there is no more holding force, press the release button to retract the inner tube.