Material: Synthetic fibers (PBT, polybutylene terephthalate).
Diameter: 0.10,0.15,0.20,0.25mm (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