Features: Crafted from high performances alloy steel, these slash4wd axles heads deliver outstanding durability and impact resistance, solving plastic hub fragility for long lasting car performances on hard terrains. accuracy engineered for seamless compatibility with slash4wd models, these small alloy steel axles heads enhances stability without compromising speed or maneuverability during intense racing meeting . Ideal for enthusiasts ranging from hobbyists to competitive racers seeking reliable upgrades for frequent off road adventures or technical track challenges. Thrives in demanding environment like trails, wet conditions, or mud tracks thanks to corrosion resistant coating that prevents induced performances degradation. The modular design enables tool free installation and quick replacements, minimizing downtimes while maximizing your vehicle's operational efficiency during high intensity meeting . Specifications: Material: steel Length: about 19mm/0.75inch Diameter: about 12mm/0.5inch Package Includes: 1 set Front axles Hubs Or 1 set Rear axles Hubs note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you not mind before you order. 2.Due to the differences between different monitors, the picture may not reflect the actual color of the item.