3 Wheel Barbecue Cooking Calculator/Guide, 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. Outside wheels are 3.57" diameter with an extended portion (4.48"), Large Center wheel is 5.56" diameter. Also available in English & Spanish.