This chair is for people that have sensory issues based on the need for rocking or bouncing. It helps by giving the feeling of being cuddled and ability to rock and bounce. It is made of light tubular frame, spring strap attachment, and heavy duty washable canvas type seat for easy cleaning. It will hold up to 300 pounds so it is good all the way from child size to adult size. I purchased from the United States and with all costs it was in total over 1900.00. My son only tried using a few times so in almost new condition so would still have to be broken in. Asking 850.00 so I can purchase something else for him. If interested please contact me. Thanks