Mine isn’t a chirp wheel but I’d still recommend it. I got it off Amazon and it’s called Pete’s choice https://www.amazon.com/petes-choice-Comfortable-Accessory-Flexibility/dp/B06W9K1W4F/ref=mp_s_a_1_3?dchild=1&keywords=yoga+wheel&qid=1609738341&sprefix=yoga+whe&sr=8-3 I find it really helpful for back and heart openers. It’s nice if you’re working on getting deeper but don’t have the strength to back it up or just want to do it safely. I know a lot of people do fun more challenging balancing things with it but I haven’t ventured out that far.