Refill cartridge is designed for use with 3M Heat-Free Laminating System LS950. Cartridge film laminates both sides of an item for enhanced protection. Laminate items up to 8-1/2" wide and as long as 50'. The 8.6 mil refill features a glossy finish and can be used to protect many items. It is perfect for documents, schedules, presentations, phone lists, certificates, signs, awards, calendars, children's artwork and more.