3M™ Dual Laminate Refill Cartridge DL1051-P combined with the 3M™ Laminating System LS1050 provides instant front and back side lamination which is great for posters, banners, signs and more. It uses no electricity, there is no warm-up waiting, and no heat or irritating odours. This makes it ideal for sensitive documents which may be sensitive to heat. Professional document finishing right at your workstation!