Feature:1. Made of high quality aluminum alloy material, it is rugged and durable, making your model car cooler and more attractive.2. Reasonable design makes it easy to install and disassemble and is a damaged or old replacement.3. Simple design, light and compact, easy to carry and use, convenient and practical.4. It has high strength and durability, ensuring a longer service life and better working performance.5. Good spare parts for remote control car, fit for 16889A or 16889 or SG1601 or SG1602 1 or 16 RC car.Specification:Item Type: Metal Differential CupMaterial: Aluminum AlloyLength: Approx. 21mm or 0.8inWeight: Approx. 22g or 0.8ozSuitable for 16889A or 16889 or SG1601 or SG1602 1 or 16 RC Car.Package List:4 x Metal Differential Cup4 x Accessories Note:1. Please allow 01 inch error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.