Aluminum Universal Hex Adapter 12mmx8mm - 4Pcs Set Titanium Product Name : Aluminum Universal Hex Adapter 12mmx8mm - 4Pcs Set Item No. : ADT128/4-TIT Color : Titanium Will fit RC cars with 5mm shaft, 100% secure design ensures the fitment to be very secure and accurate. Order will be processed and shipped in 1-3 business days, normally takes 7-20 business days to arrive worldwide.