Ideal for interactive applications, Fusion carts with dynamic height adjust capability create better accessibility to technology in the boardroom and the classroom. The height adjustable box provides ultra-smooth and fast vertical travel with almost no effort. Round edges and sleek features give the cart a softer, professional feel that fits in well in corporate and classroom environments.Ships with 4 preassembled heavy duty casters, 2 front casters are lockable, for safe and secure placement. The spring system has been tested for 60,000 cycles and 10 years of use.