1.They are One sided stickers, can use for long time without harm, not like double-sided impede circulation of skin blood, and you can be easy to wear than double side stickers. 2.MEDICAL-USE and HYPOALLERGENIC- The double eyelid tapes are fiber, which are breathable, waterproof and stay all day long,are suitable for most kinds skin color. 3.PERFECT FOR- The double eyelid tapesnot easy to fall off, does not affect the make-upcan enhance your eyes, will give you a paris of charming eyes, especially perfect for hooded, droopy, uneven, or mono-eyelids. 4.NATURAL AND CHARMING- Easy to create deep and natural double eyelid, makes eyes more beautiful and eyes seem rounder and larger. 5.WITHOUT SURGERY- Continuous use it makes your double eyelids permanent without surgery