To prevent scratches on the main unit, I've attached sponge pads to the back as rubber feet. If you don't need them, they can be removed cleanly by heating them with a hairdryer. Therefore, the product is in very good condition. I rarely used it. I bought it out of curiosity, but I hardly used it. Buy when you want it!!! ...I think, so you don't need to ask before purchasing. This item is protected against substitution. I do not offer discounts. I may not be able to answer vague questions. I am a private seller, so there may be oversights. Please understand this before purchasing. This is a set price, so I do not sell items separately.