HP Papers is sourced from renewable forest resources and has achieved production with 0% deforestation in North America | Each ream is wrapped in a polyurethane coated paper wrapper to protect the cut sheets from moisture damage Sheet Size – 8.5 x 11 | Thickness – 20 lb. | Brightness – 92 Bright White HP Copy&Print20 20lb printer paper is Forest Stewardship Council (FSC) certified and contributes toward satisfying credit MR1 under LEED (Leadership in Energy and Environmental Design) Superior quality, reliability, and dependability for high-volume printing at home, at school and in the office | HP Copy&Print20 print and copy paper prevents yellowing over time to ensure a long-lasting appearance for added archival quality.