The American-made 450 series, with their steel constructed base and easy-to-clean polystyrene tray measuring 22 W x 14.75 D x 4.5 H inch (56 W x 37 D x 11 H cm) can cradle babies securely on these dependably accurate scales. The die-cast weigh beam may be read from either side. Overall scale dimensions are 22 x 21 x 27 inch (56 W x 53 D x 69 H cm). An integral 22 inch (56 cm) measuring tape is also included. No power required. Available in capacities of 40 or 130 lb and 20 or 65 kg.