Tape is used to hold the base plate in place for extra security and longer wear time. The Brava Elastic Tape is designed to keep your base plate securely in place while still allowing you freedom of movement. It achieves this thanks to its elasticity. So even if you’re stretching for something on the top shelf or bending down to tie your shoe, you can rest assured that the tape will move with your body and keep your appliance firmly in place. This can mean greater security and longer wearing time of your appliance.