This is Tamiya's B parts (damper stay) for the MF-01X. The part number is SP-1577 (51577). This is a new, unused item that I kept as a spare part. It includes parts for extending the overall length of the M-chassis, so it's convenient to have spares when changing from S size to M size or L size. When shipping, I will try to make it as compact as possible, so I will not use cushioning material for packaging. Please be aware of this. Type: Radio Control Car Manufacturer: Tamiya Type: RC Parts Radio Control Car: RC Spare Parts