2 Dishes are included. One dish will have a 28' radius, and the other will have a 15' foot radius. If you are you a luthier in search of luthier supplies and not wanting to break the bank, you've found the right tools for the job. Getting the correct radius for your guitar building isn't easy by hand, but having a radius dish can make it so. We make radius dishes with all different kinds of radius dimensions; they are completely custom. Dishes are 24'' wide in diameter and are made from 3/4'' high quality MDF.