The Safety 1st Ready, Set, Walk! DX Developmental Walker in Kinsale is a foldable and adjustable height walker designed for babies. It weighs 7.4 lbs and measures 27.50 x 24.00 x 22.00 inches when assembled. The walker features rolling wheels, and it is suitable for both boys and girls. The model number is WA115HAN, and it requires one AAA battery.