You can use this whitening pen under 1 minute daily with confidence and assurance! The compact design measured at 5” makes it so easy to whiten your teeth on the go, at any time and any place. The pen device features a durable twist mechanism with a soft brush tip that gently paints each tooth and its crevices for a complete whitening experience. The transparent tube allows you see exactly how much product is left. Save your valuable time and money and get faster results with our whitening pen! Say goodbye to messy, and expensive whitening treatments!