Beauty formulas active oral care interdental brush comes in a pack of 6 for interdental cleaning and prevention of periodontal disease. The brush has a special locking system, just push up the head, insert the brush, and lower the head to lock. Directions Of Use: Gently ease the brush into the space between the tooth and the gum line, clean the space by gently moving the brush back & forth. Rinse after use. Ideal for - Beauty formulas active oral care interdental brush is a perfect option to take care of your teeth. If you have any kind of dental implants or wear braces, this is a must have product for you!