GUM Proxabrush Go-Betweens Ultra Tight is slightly more compact than the Tight interdental brush and is designed for more moderately narrow spaces. GUM Proxabrush Go-Betweens remove dental plaque from areas that are most commonly missed by toothbrushing alone. Each Proxabrush features a flexible neck for precise cleaning, a brush head with triangular bristles that are proven to remove more dental plaque than conventional bristles, and a convenient travel cap. Also included is a non-slip handle allowing for pinpoint targeting and mobility throughout the mouth. The soft nylon brush heads feature an antibacterial coating to help keep the bristles hygienic between uses. These interdental brushes are compact and easy to slide into your pocket or purse for an on-the-go interdental cleaning.