★ BLACK MINK Double Layer Lashes are made of premium quality PBT material in a sterile environment. Double layer eyelashes are perfect for volume sets. They come in single and mixed lengths of 20 rows each tray (lines of 8 to 14 mm in mixed trays). ★ EASY to DETACH & APPLY. The fans are easily detached from the tray and applied to the natural lashes, which makes your appointment much quicker. Double layer lash extensions are available in C+D curl and lengths from 8mm to 14mm. ★ HIGH-QUALITY double layer mink lashes are excellent for helping lash professionals in providing their clients with a strong and long-standing curl of soft volume lashes.