Groove lashes have a half-moon cut out on both sides of the lash, giving you the option to place the extension on the top or bottom of the natural lash. The groove wraps around the natural lash and locks on to give your clients the ultimate retention. Slightly shinier finish. The .15 is comparable to a .12 due to the weight and softness, while the .20 is comparable to a .18.
Groove lashes also work great for bottom lashes, available in .20mm diameter in 6,7,and 8mm B-curl.
Variety Trays come in lengths 8-14mm.