Serenity cribs and made of high-quality fabrication and include mortis and tenon construction for superior strength. Features a full-length piano hinge, which allows the caregiver to lower the side rail height to access the infant and minimize back strain. Durable long-lasting finish. Each crib includes 2" ball-bearing casters (2 locking). Natural finish features antique brass hardware and casters. White finish chrome hardware and casters. Includes Infapure mattress. Mattress meets flammability standard CFR1633 is CAL117 compliant. Complies with new crib safety standard 16 CFR Parts 1219, 1220 and 1500. JPMA certified. Your choice of Natural or White finish. Assembled dimensions are 39.13" x 26.25" x 40".