0.2MM ellipse flat classic lashes eyelash extensions are fine lashes suitable for multiple classic fanning techniques. In order to determine the best type of eyelash that suits your needs, we provide some guidelines about curl type, length, and thickness. C curl creates attractive lashes as if they were permed, and it is the most commonly used curl. CC curl is our perfect in between curl, giving you slightly more than C curl but slightly less than D curl. D curl is used to create doll-like lashes for special occasions or those who want more drama. 8mm-9mm used on the inside and outside of the eye area 10mm-12mm most commonly used for the middle of the eye area for a natural look 13mm and 14mm creates a dramatic look 15mm+ this length is very dramatic and should not be unless the natural lash is strong .20 used for classic dramatic look Tdance Lash Trays include 12 rows of lashes and are made of the highest quality PBT fiber. The material is very soft to the touch. Each tray includes over 1600 lashes. Because they are made of high quality materials you will notice they do not loose their curl over time. They are simply the best.