Baby Moon Style Cap Chrome suit 14"-16" Inside Bump Wheels. These are Chrome plated metal baby moon hubcaps. They fit wheels where the inside flange has 3 bumps and measures 71/2 inches and there are no openings or vents in the wheel. They fit aftermarket steel wheels made after 1973 that are often referred to as smoothie, steelie and solid wheels and manufactured by many wheel companies. They will fit 14 inch, 15 inch, and 16 inch steel wheels made by American Racing, Coker Tire, US Wheels, Wheel Vintiques, Pete Paulsen Wheels and Early Wheel Company.