Beauty, Personal Care and Cosmetic Products Design Bixdo W60 Star Multifunctional Toothbrush by Chengshen Tan The Bixdo W60 electric toothbrush is designed to provide users with teeth whitening benefits during use. The bristles incorporate a novel optical fiber material, featuring a tiny optical fiber core at the center of the light-conducting bristles with a diameter of either 8 micrometers or 50 micrometers. The addition of gum-protective bristles not only contributes to teeth whitening but also ensures thoughtful protection for the gums.