Package includes: 4 soft toothbrush in assorted color, you can share them with your friends and family as gift, also portable for outdoor activities like travel or camping Multi-duty: soft bristles of the toothbrush help you prevent teeth recession from aggressive brushing, with comprehensive cleaning function, also suitable for tongue-cleaning 20,000 Soft bristles: more than 20,000 pretty soft micro-nano bristles, penetrate the sulcus of the teeth and the gum line, deeply and smoothly clean the teeth and remove the filthy without hurting the tooth enamel Suitable for: this delicately-designed toothbrush adopts nano technology, great for those who have fragile teeth and other teeth-related worries Proper size: the micro-nano manual toothbrush measures 18 x 1.3 cm/ 7.1 x 0.5 inch, bristle's length is 1 cm/ 0.4 inch, suitable size for easy holding and deep cleaning, also allows for convenient taking