The play panel is what holds a baby at this walker: a turning steering wheel, a shifter to click back and forth, two rearview toy mirrors, and music with several light patterns. Underneath, the rear wheels adjust for a baby who pushes hard or one still building strength, and the seat sets to 3 heights for 6 to 18 Months. A safety bumper and 5 non-slip stair pads guard the edges. The seat cushion lifts out for washing and the frame folds flat. Runs on 2 AA batteries, not included. ASTM and CPSIA certified to 25 lb.