New and High Quality Feature:Million ultra-fine bristles for effective deep cleaning of teeth.Micron soft hair, effective care for gum health.Two brush heads are available in three colors.The material is environmentally safe.It is suitable for people with bleeding gums and sensitive gums.Specification:product material: environmentally friendly antibacterial fiber hair + ABS high light handleProduct weight: 25.5gColor: black, white,Type: Wave Head,Flat HeadNOTE: For different monitors, the color may vary slightly. Besides, please allow some errors of manual measurement, thank you for your understandingConvertion: 1 mm=0.039 inch, 1 inch=25.4 mmPackage Content:4Pcs*Toothbrushes (2PCs White +2PCs Black)