NOW Available in a NEW Variety Pack! The GUM Proxabrush Variety Pack includes 3 Ultra Tight, 4 Tight and 1 Wide interdental brushes to suit different spaces and needs. Scroll down for more details! GUM® Proxabrush® Interdental Cleaners are easy-to-use between teeth cleaners clinically designed to remove plaque and food particles from any size interdental space that brushing alone cannot reach. This reusable oral care solution has unique antibacterial bristles that help keep the brush clean between uses* Available in 4 sizes to fit your unique needs: Ultra-Tight, Tight, Moderate and Wide Everyone has different size spaces between each tooth. You may need more than one size to properly clean your whole mouth. Never force the brush into tight spaces. Speak to your Dentist or Dental Hygienist to understand which sizes might fit the spaces between your teeth best.