Features: Premium 0.152mm diameter DuPont bristles enables to go deep into teeth gap for effective cleaning. High-density bristles bed increase contact between bristles and teeth, allowing for more effectively removing food residues. W-shaped cutting of toothbrush fits teeth contour of most people, so that it can reach hard-to-reach areas for a better oral care. Round-ended bristles reduce risk of scratch to teeth or damage to gums. Double detection of brush head life(Pedex bristles visual reminder and HUAWEI HiLink App reminder) remind the user to replace their head brush in time. UV sterilization of each brush ensures sanitation, hygiene and use safety. Specifications: Name: Lebooo Sonic Electric Toothbrush Head Model: LBS-T053A Color: Black/White (Optional) Nominal Bristle Diameter: 0.152mm Item Size: 16*16*82mm/0.6*0.6*3.2in Package Weight: 130g/4.6oz Package Size: 125*65*29mm/4.9*2.6*1.1in Notes: It is recommended to replace toothbrush every 3 months. Due to manual measurement, there may be deviation. Due to photograph light or other reasons, the item in picture and material object may have slight difference, please in kind prevail. All data are theoretical values obtained by Lebooo laboratory through tests carried out under particular conditions. Actual data may vary owing to differences in usage and environmental factors, please refer to actual use situation. Package List: 2 * Toothbrush Head