Why use a GUM Stimulator? Great question. By using the GUM Stimulator at least once daily, you massage your gingival tissues to help promote increased blood flow, while the rubber tip helps to dislodge food particles, dental plaque, and biofilm from between the teeth and around the gums. This activity will help the gums stay firm and healthy. The GUM stimulator features a long, ergonomic non-slip handle that lends effortless precision and control as you aim for even the most hard-to-reach areas of the mouth. At the end is a soft, replaceable conical-shaped rubber tip to use for gently massaging the gums and picking away any dental plaque or dental calculous caught between your teeth. Bundle comes with 2 stimulator refills.