The UMF Medical SS8528 Stainless Steel Bassinet with Two Doors is built on a heavy duty 1” O.D. (2.54cm) tubular stainless steel framework. Basket supports with insert bends allow basket to be moved to horizontal or elevated positions. Mounted on 3” (7.6cm) ball bearing swivel casters. The UMF Medical SS8528 Stainless Steel Bassinet with Two Doors comes with a 3 year limited warranty. Basket and Mattress are optional equipment. Heavy duty tubular stainless steel framework Full width storage area with two doors 3” (7.6cm) ball bearing swivel casters 3 year limited warranty