If you have a DiamondClean toothbrush, you may notice that toothpaste residue and water spots are easy to see when they build up on the shiny portion at bottom of the handle. To remove these residues in a way which does not damage important product information on the bottom of the handle, use the following procedure:
1) Dampen a soft cloth with lukewarm water only and gently wipe residues from the shiny bottom of the handle.
2) Do not rub with abrasive cleaners or cleaning aids such as abrasive pads or brushes. Do not use your fingernails or any other tools. Use of these products may remove important product information from the handle.
3) Allow handle to air dry