When ordering a case of 432 toothbrushes (there are 6 boxes of 72 per case) or more imprinting is FREE. You can mix and match toothbrush styles (e.g., 3 boxes children's and 3 boxes of adult) to get to case volume and received FREE imprinting (you just need 6 boxes of toothbrushes total). YOU MUST USE THE SAME IMPRINT ON ALL THE TOOTHBRUSHES TO GET FREE IMPRINTING. When ordering 5 boxes or less the fee is a flat $20. Select "Yes" from the pull down menu below and you will be prompted on the next screen for your imprinting options.