The product is a set of four 3.5" to 4" wheel spacers by Fat Daddy Smokers. Made of heavy-duty carbon steel, these steel wheel adapter plates are designed for easy installation on both the front and rear of a vehicle. The raw color of the spacers makes them versatile for various wheel and vehicle setups. With this set, you can enhance the look and performance of your vehicle by adjusting the wheel size and improving the overall fitment.