This 42\" x 150\' roll of Universal Coated Paper from HP is a large format paper designed for use with latex printers as well as standard inks and printheads. It is meant as a display material with a basis weight of 90 gsm and a thickness of 4. 9 mil. Also, it has an opacity of 89%, a brightness of 89%, and a whiteness of 117%. The Universal Coated Paper features a matte surface finish and is instant drying for handling shortly after printing. It is also recyclable and comes on a 2\" core. General specifications: Basis Weight: 90 gsm (24 lb) Thickness: 4. 9 mil (124 microns) Opacity: 89% Brightness: 89% Whiteness: 117% Finish: Matte Drying Time: Immediate Shelf Life: 2 years, unopened Operating Conditions: Temperature: 59 to 86?F (15 to 30?C) Storage Conditions: Temperature: 41 to 104?F (5 to 40?C) Core Size: 2\" (5. 1 cm) Size: 42\" x 150\' (106. 7 cm x 45. 7 m)