These BL Blink Lash Individual Synthetic Loose Eyelash Extensions give a natural mascara look with a rigid curl. These Blink lashes are made from a special PBT fiber that will not loose their curl over time. These individual synthetic BL Lash loose lashes in 1 gram cases are packed in a bag in loose form. The amount of lashes varies because lashes are sold by weight for example an 9mm pack will have twice as many lashes as a 15mm pack. An average amount of lashes is approximately 3000 per 1gram. BL Blink Lash Individual Synthetic Loose Eyelash Extensions are available in multiple curls and thicknesses ranging from .25mm to .30mm with lengths from 9mm to 15mm.