Exercise ball is the best chair for me. It has the best cushioning unmatched to any unreasonably expensive chairs. Backrest and armrests aren't necessary. You s

Exercise ball is the best chair for me. It has the best cushioning unmatched to any unreasonably expensive chairs. Backrest and armrests aren't necessary. You should have developed enough core to support your weight. You are free from developing injuries caused by long use of ordinary chair. It's cheap and portable too.