3 Wheel Calorie Counter Calculator (French model). Digitally printed in high resolution full colour & UV Varnish directly on to the .020 White Vinyl Plastic material. This makes for a top quality long lasting wheel. Use our standard template or supply your own customized one. Ideal for Gyms, Fitness, Health & Sports Clubs. Also used in the Diet, Nutrition, & Insurance Industries among others. Outside wheels are 3.57" dia. Large Center wheel is 5.56" dia. English & Spanish models also available.