& GUM Proxabrush Travel is used as a handle to better reach the posterior zones. Small and practical, this ambulatory brush is ready to use. Ideal in travel. Antibacterial protection: The brushes are protected by an antibacterial active ingredient, Chlorhexidine, which inhibits the bacterial growth on the brushes, up to 2 weeks. With ventilation, the cap protects the brush whilst allowing it to dry.&