Product Size:This steering wheel cover is made of high rade neoprene， Steering wheel diameter 38 cm or 15 inches.Product performance:Breathable, non slip, waterproof and odor free, it not only prolongs the life of the product but also hides existing wear and tear.In summer, protect your hands from being scalded by the hot steering wheel. In winter, protect your hands from being scalded by the icy steering wheel.making it the perfect gift for friends and family.Installation Notes：Will be attached to the top of the steering wheel, from top to bottom, center and stretch the sides, cover it over the bottom edge, and it's easy to install.