I opened it and tried it once, but I forgot that I already have something very similar at home, so I'm selling it because I don't need it. It's in excellent condition, but I will clean it with alcohol and pack it just in case. Bonus exercise band: I opened this too, but I haven't used it even once. The retail price was 7106 yen, and I purchased it from a Rakuten shop in September. Thank you very much.