ZG-0011 Multifunctional Tray *Scientific design, height and angle can be adjustable *Can be mounted to steering wheel, assistant seat and seat back *Can be used as desk providing convenient place for notebook, grocery food, drink?etc. *The thickness is only 4 cm after it be returned to the upright position against the seat back *Easy installation and angle adjustable. Will fit any steering wheel or car seat *Ideal tool for outdoors working, studying and dining