【What are YY Lashes】：The base of 4 lash extensions is bonded together and splits into two lash extension, forming a Y shape eyelash extension. Kolybel YY premade fans have 0.05/0.07 thickness, C/D Curl ,10-15 single length tray and 8-15mm mixed tray, 12rows/tray. | 【Quick Easy to Use & Save more time】:kolybel YY shape eyelash extensions are premade fans ,you can use directly and quickiy get 4D yy lashes without professional skills.Y lash extension will help you save more time to service more customers. | 【Soft Lightweight & Better Retention】: Kolybel YY lashes are made of high quality PBT silk fiber environmentally friendly materials , soft as mink and lightweight as feather. Unlike other lashes, yy lashes have a long stem to increase the contact area with own natural lashes,so these y shapes lashes have a stronger bond and better retention. | 【Natural and Unique Look】:Using YY lash extension can create a natural and unique look. Special yy lashes can easily cover gaps in sparse lashes,which making your lashes more natural, fluffy and graceful. | 【Customer Service】：Kolybel always provide you high products and best service.If you are not completely satisfied with our lashes, pls feel free to contact us.We will do the best solution for you.