Choose from any of Voil??s rainbow color wooden tooth keepers to store the primary teeth or baby teeth of your child. By doing so, you can preserve the memories of your child?s development between the ages of 6 years old up until around 12 years old when baby teeth gradually fall. It is recommended that each tooth be simply washed thoroughly, wiped and left to dry completely before putting it away into our wooden tooth keeper. No need to scrub or use soap.