The package includes: 2 x blue soft toothbrush, 2 x pink soft toothbrush, you can share as a gift with your friends and family, also portable for outdoor activities such as travel or camping. Multi Duty: Soft toothbrush bristles prevent aggressive tooth brushing caused by gum recession. They have a comprehensive cleaning function that is also suitable for tongue cleaning. 20,000 soft bristles: More than 20,000 rather soft micro-nano bristles penetrate into the crevices of the teeth and the gum line, clean the teeth thoroughly and smoothly and remove the dirt without damaging the enamel. Suitable for: This delicately designed toothbrush uses nanotechnology and is excellent for those with fragile teeth and other tooth-related problems. Correct size: The manual micro-nano toothbrush measures 18 x 1.3 cm/ 7.1 x 0.5 inch, the bristle length is 1 cm/ 0.4 inch, suitable size for easy holding and thorough cleaning, also allows you to take it conveniently.