Wheel covering is a term used to describe the protective coverings that are placed on the wheels of a vehicle. The most common wheel coverings are tyres, tires and hubcaps. Tyres and tires are both four letter words that refer to the rubber coverings that are placed around the wheel of a vehicle. Hubcaps are six letter words that refer to the metal or plastic covers that are placed over the centre of the wheel. All three of these wheel coverings provide protection for the wheel and help to improve the overall look of the vehicle.