Durable, affordable, and comfortoble. Providing these qualities in a mattress is the reason of L.A. Baby"s existence. Our high coil count innerspring provides firm support to baby"s devoloping spine. While the border rod keeps the sides of the mattress firm to provide safety when baby starts pulling up to a standing position. Dimension: 52" x 27.5" x 5.75". Model No. MT-5260-BW