The every sturdy feet of the massage bed are equipped with height-adjustable knobs, which can be adjusted to massage table height by turning the button. The massage table has a 2-inch-thick sponge, give you a soft and comfortable experience. The massage table made of highest quality beech, reinforced hardwood corner blocks for superior strength to enable up to 500lbs on the spa table. This massage bed does not require any tools, All we had to do was open/unfold massage bed from the middle and the legs automatically fell into place. Massage table quick installation method is saves valuable time.