IMPORTANT NOTE– When using the oil-absorbing roller , lift the transparent dust cover directly upward is the correct operation, DO NOT rotate and twist the oil-absorbing volcanic face roller dust cover, otherwise other parts will easily fall off with the dust cover. After falling, please refer to the installation steps picture to reassemble and use. CONVENIENT TO CARRY– It easy to be put in your makeup bag and hand bag. You can use the oil absorbing roller on your skin with and without makeup.A perfect gift for friends, mom, wife, or yourself. EASY TO WASH – After use, you can twist the roller’s ring to unlock and pull out the stone. Wash it with soft cleaner, rinse it and then air-dry in a ventilated place. EASY TO USE – Roll the volcanic stone roller over your T-zone (across your forehead and down your nose), or anywhere you have excess oil. You will see the used color change from light brown to dark. LESS WASTE THAN MAKEUP BLOTTING PAPER – 1 Volcanic Roller and 2 Replaceable Volcanic Balls. Oil-Absorbing volcanic face roller is reusable. Generally, the oil control on the go roller can be reused 360 times. LIKE OIL ABSORBING SHEETS FOR FACE, BUT BETTER – You can use the oil absorbing roller on your face with and without makeup. It will soak up any excess oil and shiny on your skin instantly. The roller won’t mess up your makeup.