The founders of izola's grandfather was a dentist and always told us to replace our toothbrush every three months. The idea seemed simple enough, but months would pass and they found ourselves still using the same brush. They needed a reminder, so they decided to put it right on the handle. Izola’s toothbrushes are made from sustainable bamboo and nylon bristles. They come in a box set, each containing a year’s supply of brushes designed with exceptional attention to detail. Our “months” set serves as a reminder of when it’s time to switch to a fresh brush. The toothbrush sets are izola best-sellers and have proven to be fantastic gifts.