Material: Synthetic fibers (PBT, polybutylene terephthalate).
Diameter: 0.03–0.20 mm (common range).
Length: 6–15 mm (customized based on natural lash length).
Curl Types: J-curl (natural), C-curl (classic), D-curl (dramatic), L-curl (lower lash line), Customized Curl like M, LC, LD