EuroPerf Perforated Steering Wheel Cover (15 3/4 X 4 3/8-31PERF-35) by Wheelskins®. Outside Diameter: 15 3/4″. Grip Circumference: 4 3/8″. Top and Bottom Color: Yellow. Sides Color: Cobalt. Perforation: Top and Bottom. Cobalt is a bright royal blue. Take it a step further with Wheelskins EuroPerf perforated leather. Let your imagination lead you to create the perfect look and texture for your vehicle’s interior. Choose one color or two tone, and Wheelskins perforate the top & bottom, the sides or all around the cover. You decide!