Features:Anti-yellow tooth: effectively prevent pigmentation, so that tooth no longer yellow.Small, portable and easy to carry: When traveling, keep the tooth care pen in your bag, shelf or suitcase without taking up too much space.Easy to use: Simply apply tooth whitening pen to the toothbrush, using safe ingredients, gently, naturally and gently remove tooth stains, suitable for normal and sensitive teeth.Freshing breath: All-round care of oral health, lasting freshing breath.Suitable for: people who like to drink coffee, tea and smokes.Notice:1.Actual color may be slightly different from the image due to different light effect2.Please allow 1-3cm deviation due to manual measurementDescription:Capacity:4mlSize:12.5x1.3cm