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 from100% renewable bamboo, this travel toothbrush is both lightweight and sturdy. Add to your toiletry bag for any trip or take it daily on-the-go. 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.