Item Type: Ball bearing_x000D_Material: Steel_x000D_Weight: Approx. 11g / 0. 39oz_x000D_Large Size: 4x8x3mm / 0. 16x0. 31x0. 12in(2 pcs)_x000D_Medium Size: 3x6x2. 5mm / 0. 12x0. 24x0. 1in(16 pcs)_x000D_Small Size: 2x5x2. 5mm / 0. 08x0. 2x0. 1in(2 pcs)_x000D_Compatibility: For AXIAL SCX24 1/24 RC crawler car 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.