The Foundations Chelsea Steel Crib is non folding and can be converted to an evacuation crib with the addition of the 4" Evacuation Casters (item 1965202, sold separately). Chelsea crib comes complete with 2" casters (2 locking), 3" DuraLoft heavy duty mattress, and a reinforced mattress board which adjusts to 2 heights. 360 degree welding process ensures unsurpassed strength and prevents harboring of bacteria. The nonporous, easy to clean powder coated finish is durable and long lasting. Clear view ends and sides. Easy assembly, all necessary tools are included. Limited one year warranty.