The Marlin A4 Pastel Assorted Project Board 50 Packs feature thick, soft-toned 160gsm creative cardstock sheets. The soothing multipack assortment delivers elegant, muted backdrop options flawlessly. Acid-free raw material properties completely prevent long-term artwork yellowing. Rigid structural card sheets hold heavy school crafting glue neatly. It delivers professional, highly polished results for complex design portfolios.