Description: 【Quality Construction】: Crafted from brass for the hex wheel hubs and 304 stainless steel for the screws, ensuring long term durability and resistance to wear and tear 【Accurate Dimensions】: The hex wheel hubs feature an outer diameter of 1.2cm (0.47 inches), a height of 1.3cm (0.51 inches), and a hole diameter of 0.5cm (0.20 inches). The included screws are M4x12mm, providing a great fit for your RC vehicle needs 【Versatile Compatibility】: YK4082 4102 6061 RC Car Hex Wheel Hubs are designed to be compatible for both 1/8 and 1/10 scale remote control cars, making it an ideal choice for various models in your collection 【Enhanced Performance】: This widened combiner replacement enhances the stability and performance of your RC crawler wheels, offering improved handling during operation 【Essential Maintenance Component】: Great as a spare part or for conversion projects, this metal combiner serves as an essential accessory for repairing or upgrading your remote controlled toys and vehicles Specification:Hex Wheel Hubs Material: Brass Screw Material: 304 Stainless Steel Output Shaft Material: 1144 Iron (Hardness of 45 Degrees) Size Chart:Hex Wheel Hubs: Outer Diameter: 1.2cm/0.47inch, Height: 1.3cm/0.51inch Hole Diameter: 0.5cm/0.20inch, Screw: M4x12mm Output Shaft: Length: 4.4cm/1.73inch, Outer Diameter: 0.5cm/0.20inch Package Includes:6 Hex Wheel Hubs 6 Screw 6 Output Shafts Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.