The growth-adjustable Beta+ wooden high chair comes with wheels, a dining tray, a front bar, a 5-point harness system, a step belt, and a 2-piece seat cushion. The seat board and footrest can be adjusted in height and depth to match your child's growth stage. You can use the growth-adjustable wooden high chair in many different configurations. The dining tray or front bar can be combined with the 5-point harness system or the step belt. The 5-point harness system is easily secured to the backrest with Velcro and can be flexibly adjusted to your child's height. The step belt can also be easily attached. You can use the harness systems as needed.