The tooth brush coverings have 4 holes to allow air dry. keep your toothbrush really fresh and protect it from any unwanted debris. Spring closing prevents the toothbrush cover from falling off during the journey, the hinge handle design, very easy to open and close. These work great for protecting your toothbrushes, great for travel or at home use. Come in different colors to identify which toothbrush belongs to everyone, make a label for your family's toothbrushes, so the kids know who’s is who. Made of food grade materials, No smell, BPA Free, PVC Free, Phthalate Free. Perfect for protecting your toothbrush head at home, travel, camping, business, school, college, or while traveling on vacation. The toothbrush cover perfectly compatible with standard and electric toothbrush, they are large enough to fit various size toothbrush heads. Great for travel and home, keeps your tooth brush bristles clear and away from the elements.