Don’t waste your money.
We purchased the koku oval egg chair for our 9 year old and have regretted it. It is a large, unevenly lumpy, and hard waste of space. It’s difficult to sit on even as an adult as it has no give and the foam lumps inside do not move or adapt essentially pushing you out of the chair. I tried reaching out to customer service about the issue and never heard back. Don’t bother buying these.