Seven pounds makes this the walker a parent can carry upstairs with a baby on the other arm. Height changes need no tools: three settings raise the tray to 15 in, 16 in, or 17 in off the floor for a 7-to-14-month-old. The music tray adds lights and interactive toys, running on 2 AA batteries that are not included. An ergonomic backrest holds posture while universal wheels turn in any direction, and non-slip foot pads plus spaced safety gaps guard against pinching. The padded cushion goes in the washing machine. Folds to 11.5 in ASTM and CPSIA certified to 26.5 lb.