2 set RC Car parts: 1 set Differential Cups and 1 set Universal Drive Shafts. The differential cup is designed for 144001 1/14 four-wheel electric vehicles. High-quality construction ensures compatibility with your equipment specifications. Made of durable, wear-resistant, and corrosion-resistant materials. Direct replacement for old differential cup accessories to enhance control of your high-speed car. Easy to install and remove, effectively improving RC vehicle handling performance. Differential Cup: Type: 144001-1280 Applicable age: over 6 years Application: Fits 144001 1/14 RC Car Color: Silver Material: Metal Universal Drive Shaft: Material: Steel Color: Black Suitable for: 144001 1/14 RC Car Package Contents: 4 x Differential Cups 2 x Universal Drive Shafts Note: Lighting and monitor settings may cause slight color variations between the image and the actual item. Measurement tolerance: +/- 1-3 cm.