This all-in-one bamboo travel toothbrush and case is perfect for all your overnight trips and for those that love to pack light! Made from 100% renewable bamboo, this travel toothbrush is both lightweight and sturdy. Customers can buy just the replacement toothbrush head and keep the case portion for continued use. Includes an air hole on the end for drying. Bristles are bio based- made from castor oil and infused with charcoal. How to Care: Bamboo is naturally antimicrobial, but we recommend to air dry each piece on a towel in between uses for longevity. Size: 4.75" in length for travel, 7" when put together and 7/8" in diameter.