The product is a preowned RC car differential (Diff) part compatible with universal brands and various vehicle types such as cars, trucks, and motorcycles. The model is designed specifically for RC cars and is compatible with nitro and glow fuel vehicles. This part is suitable for advanced hobbyists aged 12 and up, and offers combined shipping discounts for added savings. Made in the United States, this RC car diff part is a reliable and essential component for maintaining and customizing your remote-controlled vehicle.