Gymnastic technology engineered by AAI. At AAI, the latest technology comes standard in each piece of world-class equipment. Our newest innovation is the CFS Base, which uses Constant Force Springs to allow for smooth and effortless height adjustment in 5cm increments between 95 and 135cm. Now included with all Vault Tables Meets FIG, USAG, NCAA, and NFHS competition specifications Constant Force Springs (CFS) allow for smooth and effortless height adjustment in 5cm increments between 95 and 135cm. Nylatron® GS guide buttons and a chromed piston provide low coefficient of friction that allows the vault head to glide into position without shifting or dragging. Non-marking rubber floor contacts, four with adjustable leveling feet Includes 1½'' protective upright padding CFS Vault Base only