This is a convenient device that allows you to easily stimulate and stretch your back by using your own weight while lying down, targeting areas of concern. I purchased this a few years ago and used it a few times before storing it. The DVD is unopened. ● Set Contents ・Stretch Hearts (main unit) Blue ・Naoki Hosaka instructional DVD ・Instruction manual There are no noticeable stains or scratches, and it is in good condition. Thank you.