Tamiya Grade Up Parts Series TAMIYA 4WD MINI TUNE UP PARTS Aluminum Roller Set 19mm 15464 It is also possible to change from 19mm aluminum rollers to 19mm plastic rings with the same shape. This product is processed from genuine Tamiya products. Parts originally included, such as bearings and screws other than the rollers, are included. If you have a desired color, please feel free to ask. Processed using a high-precision Okuma machining center. Shipping will be via Yu-Packet Post. Please note that we cannot be held responsible for accidents during delivery. Due to work commitments, shipping will be on weekdays. For multiple purchases, shipping via Sagawa is also possible. In that case, please inquire with the desired quantity. This product was made personally, utilizing my experience at work. We ask for your understanding. The item has been opened once, and only the item has been taken out and repacked, so please consider it as a used item. Processing may cause fine scratches, but we handle it with the utmost care. Please understand that this is a personal creation, and no claims or returns are accepted. If you have any requests for your own original shapes, please ask in the questions. We will do our best to accommodate your desired design. Thank you.