With suspended figures of vehicles, the CoCaLo Road Work Musical Mobile softly plays Rock A Bye Baby". Recommended to be positioned at the babys feet, it visually stimulates the baby while soothing the baby into blissful sleep. This musical mobile attaches to a standard sized crib and has a plastic, polyester, and cotton construction. Maintenance is easy, as it requires being spot cleaned. Its ideal for babies from birth to five months.