The product is a set of four genuine 18" BMW Z4 split rim alloy wheels, without tyres. These wheels are made of aluminium with a painted silver finish,featuring a 5-spoke design, however the paint is aged and flaking meaning they really could do with a refurb. Manufactured in Germany, they have a wheel diameter of 18 inches and a width of 8.5 inches. The wheels are suitable for cars with 5 studs and are the perfect choice for those looking to upgrade their vehicle with high-quality BMW wheels.