Item Type: Ball bearing Material: Steel Weight: Approx. 11g / 0.39oz Large Size: 4x8x3mm / 0.16x0.31x0.12in(2 pcs) Medium Size: 3x6x2.5mm / 0.12x0.24x0.1in(16 pcs) Small Size: 2x5x2.5mm / 0.08x0.2x0.1in(2 pcs) Compatibility: For AXIAL SCX24 1/24 RC crawler car Package List 20 x Ball Bearing 1. Due to manual measurement, please allow 1 to 3mm tolerance, thank you 2. Due to the difference between different monitors, the picture may not reflect the actual color of the object. 1STEEL MATERIAL: Made of premium steel, our ball bearings are corrosion resistant, durable, and wear resistant, ensuring long lasting use even in harsh conditions. 2PERFORMANCE UPGRADE: Our sealed bearings are designed to reduce friction and improve your RC car's overall performance, with a lightweight and stable build that optimizes speed and handling. 3SUPERIOR SEALING: Our sealed bearings feature special non contact rubber sealing that keep dust and moisture out, ensuring a longer lifespan and less maintenance. 4PERFECTLY MATCHED: Our accuracy tolerance ball bearings are fully compatible for AXIAL SCX24 RC crawler car models, and are the perfect drop in replacement for original parts. 5EASY INSTALLATION: Our ball bearing kit is easy to install and doesn't require advanced technical skills or extra tools. Your perfect choice for replacement.