Calvin Klein Retractable Lip Brush is truly a must have travel item. Just take the top off and attach the brush end to the lid to see the brush magically pop out of the top. It has a spring back action when separated for the lid to keep the brush neat and hidden away. The brush gives a better and more lasting effect to your lipsticks. Enables you to get the lipstick right down into all the lines of the lips instead of sitting on the surface. This brush comes unboxed and with the retractable action, the brush stays in shape. Length of the brush when open with bristles is approximately 11.5cm long.