PVC Board Big Checks 18"x36" ?'s firstname.lastname@example.org Big checks printed on 1/8" Smooth PVC are our original Big Checks. The 1/8" smooth PVC plastic material is rigid, durable, and waterproof. This is the most popular material for checks that are Dry Erase because of it's smooth surface. Options include dry erase finish, filled in, or blank. The dry erase option is commonly used for checks that will be used multiple times. Blank checks are only customizable with logos. To add names and amounts, choose the customizable checks.