Feature: 1. DURABLE MATERIAL: Made of excellent plastic and steel, rust and wear resistance, with long service life, convenient to better control the remote control car. 2. FINE GEAR: The internal gear of the gear box is fine and glossy, reducing the noise of the gear transmission, making the RC car very quiet. 3. GOOD PERFORMANCE: Powerful 2 speed transmission case for better performance, improving the overall performance and durability of the RC car. 4. STANDARD SIZE: The speed transmission case has a standard size, easy to install and remove, and can directly replace old or damaged gear box. 5. APPLICABLE MODEL: This speed gear box is suitable for HSP 94122 94102 1/10 RC nitro car, which is a common RC accessory with strong compatibility. Specification: Item Type: 2 Speed Gear Box Product Type: RC Accessories Model: 02076 Material: Plastic, Steel Colour: Black Product Size: Approx. 58 x 56 x 45mm / 2.3 x 2.2 x 1.8in Applicable Model: Suitable for HSP 94122 94102 1/10 RC nitro car. Package List: 1 x Speed Gear Box Note: 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.