ArtSkills 5 Minute Poster Making Kit 22" x 28", Over 230 Pieces (PA-1558) Poster board measures 22 x 28 inches giving you plenty of space for a variety of school projects. This posterboard kit includes over 230 pieces Perfect for classroom teaching supplies, teachers and students so you can stay ready for projects to come Ideal for school projects, yard sale signs, birthday parties, science fairs, car wash signs, holidays, special events, and more Be sure to check out ArtSkills complete line of poster board accessories, poster letter stickers, glitter glue, poster led lights, markers and presentaion supplies A portion of the proceeds from this purchase benefits the Kids In Need Foundation, who's mission is to ensure that every child is prepared to learn and succeed by providing free school supplies nationally to students most in need