Da-Lite's Univesal projection cart on heavy-duty casters with locking mechanism, allows the presenter to sit or stand during presentations. It gives the lasting performance and quality you expect. No-slip pads, one-half inch safety lips and no sharp edges. Carts are standard with aircraft quality 4" casters and o-rings for smooth, quiet operation and with a powder coated finish. Designed to take the rigors of heavy use for years to come.