Thank you very much for viewing this product from among many others. We have a proven track record of selling over 700 Roomba units, so you can rest assured that you are dealing with a trusted seller. We are confident in our service and the products we offer. We believe you can have a worry-free transaction with us, as we offer quality and service that goes beyond just the price. [Product Details] iRobot Roomba Genuine Tires (Left and Right) with Screws (New Tire Rubber) Blue Tire Module, Tested and Working The tire rubber has been replaced with new ones. You can use it in a condition close to new. This product costs over 8700 yen on Amazon if you buy it new (see photo). Compatible with 500, 600, 700, 800, and 900 series (not compatible with i, e, and j series) Since it is not new, there may be slight dirt. (This does not affect the operation at all.) Please understand this before purchasing. Please refrain from purchasing if you do not understand. If you want a completely new and unused product, please purchase a more expensive product from another store.