Set of 4 quality alloy replacement wheel hubs to fit 1.10 scale models. Includes 4 x 2mm x 10mm pins. To ensure a fit check your wheel axle has a hole for a 2mm thick pin to go through it and the wheel axle shaft is 5mm in diameter. Note that the bore for these hubs is 5mm and not 4mm. Note that these hubs do not feature the locking screws. Please see the 57804 range if needing the locking feature. Center hole diameter is 5mm. Wheel Hex is M12 and measures 12mm across flats. Hub thickness is 4mm.