Its spring loaded leg, it can be lowered by pressing on the foot pump at the base and pushing down on the table top. Raising the table top is just as simple – press the foot pump again. The table top mechanism, made from lightweight aluminium, facilitates movement in and out of the dining area. A lift lever allows the tabletop to swivel up to 180o, as well as in a N, S, E or W direction. Tip: To create additional strength and stability, it is always good practise to have the table top edges rest on surrounding furniture bases.