This is the "Wonder Core Twist Blue" from Shop Japan. I purchased it and soon after discovered I was pregnant, so I only used it 1-2 times. It has been stored at home ever since. There are no noticeable scratches or stains, and it is in almost new, beautiful condition. I have confirmed that it works, and the twist function and spring return are both working perfectly. There are no unusual noises. Instruction manual included. *Outer box, bands, and exercise guide are not included. After a simple cleaning, I will carefully package it and ship it folded. There are no smokers in the house, but there is a small dog. *Although it is stored in a separate room from where the dog is, please refrain from purchasing if you are concerned about small details. Instant purchase is OK. Please feel free to comment if you have any questions.