Specification:Item Type: RC Wheel Hub SetMaterial: Aluminum alloyGross Weight: 61g / 2.2ozWheel Diameter: 28mm / 1.1inWheel Width: 14mm / 0.6inHex Driver: 7mm / 0.3inApplications: Suitable for Axial SCX24 model and 1/24 scale model car modificationPackage List:4 x Hubs4 x Nuts1 x WrenchNote:1. Please allow 1‑3mm error due to manual measurement. Thanks!2. The monitor calibration is inconsistent, the color of the item shown in the photo may be slightly different from the actual object.