Description: 2pcs Ultrasonic Replacement Electric Toothbrush Head For Lebond M1 Specification: Material of the bristle: DuPont soft brush bristle Installation type: Insert type Feature: Suitable size,flexble Comfortable massage toothbrushing experience,effectively reduce tartar Top: 5 degree Bottom: 3 degree Toothbrush Oblique bristle planting technology Effective cleaning dirt from crevice between teeth Double colors high and low brush bristle (1)Blue extrended toothbrush head bristle Cleaning dirt form the angle part of the oral (2)Green soft brush bristle Protect enamel 31 Beam brush bristle Bristle quanlity increase 18% Effectively clean dental plaque DuPont soft brush bristle Grinding circle bristle How to use: 1.Pull out the old brish head 2.Install the toothbrush to the hole of the toothbrush head 3. Adjustment the toothbrush head appropriately Warm note: It is recommend to replace toothbrush head for every 3 months to prevent baterial growth Package Included: 2x Toothbrush head Detail pictures: