25 sheets of Legal Size 21.5cm x 35.5cm Laser film: a higher quality print film tool than UV Vellum and is used to print black and white vector artwork for the exposing process of creating a photomask. Laser Film is recommended for all types of artwork including detail, photos and because it's durable it works well for repeat orders. Laser film is printable on either side. Laser print film provides best results on a monochrome laser printer. This product can be used with ProBlast Magic Dark Toner Solution.