1Made of high quality wood material, exquisite, safe and non-toxic. 2Smooth wood structure enables the cars to glide quickly. 3Bright colorful and non-toxic painting, no harm to babies. 4The child's eyes move with the sliding car, training their visual tracking and concentration and stimulating spatial vision ability. 5Children pick up the car, place the car on the track by the effect of their parents, practice grip and hand-eye coordination.