Suggestions for use: L-type interdental brushes can be cleaned between the teeth, between the braces residue, the first time you use it is recommended to choose 0.6mm orMatching options, especially recommended for friends with braces. Humanised design: The handle of the tooth brush is diamond-shaped, effectively non-slip, each tooth brush has an independent cap design, effectively preventing the bristles from getting dirty and deformed, very humane and convenient to carry. HIGH QUALITY MATERIAL: The L-shaped gap brush is made of high quality PE material and soft nylon bristles, non-toxic and odourless, recyclable and durable. MULTIPLE SIZES: Orange (1.2-1.5mm), Blue (1.0-1.2), Green (0.8mm), Pink (0.6mm), with different bristle diameters, you can choose according to the size of your teeth. Packing quantity: you will receive 40 pcs of 4 colours L-shaped dental brushes, sufficient quantity can meet your daily life use and replacement.