Ardell Duralash Flare individual eyelashes are the closest thing to natural lashes ever developed and are designed for easy pplication. They are KNOTTED, weightless, waterproof, and absolutely easy to apply. They're so natural you forget they're not your own, and they can be worn for up to 6 weeks at a time.Ardell DuraLash Naturals individual eyelashes are the closest thing to natural lashes. They are KNOT FREE, weightless, waterproof, and easy to apply. Each package contains 56 easy to apply individual long length lashes with no clumsy knots or dark bands, and can be worn for up to 6 weeks at a time. Ardell Duralash individual eyelashes are designed for easy application. These lashes have a STRIP of lash that is slightly flared. They are permanently curled, weightless, waterproof, and fasten to your own lashes comfortablely.