These lifts, made in France, can be used to raise a bed or a chair to make it easier to get up. Simply place them under each leg. They are delivered with a non-slip foam disc that fits into the edge of the top of the block, so that the furniture does not move at all. Model height 9 cm: useful top diameter 8.7 cm. Floor diameter 16.5 cm. Model height 14 cm: useful top diameter 7.6 cm. Diameter on the ground 16.5 cm. Resistance 130 kg per post.