Colorations® Assorted Colors Poster Board, 22" x 28" - Pack of 100
BAZIC Poster Board Neon Yellow 22" X 28", Bulk Boards for School Craft, 25-Pack - Walmart.com
Ucreate Poster Board, White, 22" X 28", 10 Sheets Per Pack, 3 Packs : Target
Amazon.com : 30 Pcs Poster Board Metallic Silver 22" x 28" Big Poster Board Paper Bulk Reflective Shiny Cardstock Paper 22x28 for School Classroom Office Home Project Craft Presentation Display : Office Products