Upgraded Ice Roller: Both sides of the ice roller can be used, one side is rounded for application on the face and the other side is prismatic for fine application on the eyes. Benefit of Ice Roller: Contours and lifts the skin Anti-aging benefits Tighten and shrink pores Eliminates under eye puffiness Suitable for all skin types Instructions of Ice Face Roller: 1. Fill up with water,and add essential oils according to your preference. 2.Put the face roller in the refrigerator for at least 4 hours until it freezes. 3. Rinse with tap water for 3-5 seconds, take the ice roller face massager out and let it stand for 5 minutes before use. 4. Gently rotate the cap to use. Apply ice to your face daily in 30 second intervals and circular motions for optimal results.