Strong and stable material: This baby walker is made of environmentally friendly PP plastic, and the frame is thickened aluminum tube, which has good load-bearing ability. At the same time, the stable four-corner support structure and the large chassis design make the center of gravity more stable, which can prevent rollover problems. So it's great for babies who are ready to explore walking. 9 gear height adjustment: Our baby walkers for boys and girls have 9 gear adjustment modes, including 5 gear adjustment for the body and 4 gear adjustment for the seat. Adjustable body height: 15.75 inch to 18.5inch. Adjustable seat cushions can provide your baby with extra support and a comfortable tilt.