6Hold on to your hats Roller Coasters features stunning extreme coasters from across the Unites States and is great gift for any coaster enthusiast Printed with soy-based inks on FSC certified paper, this wall calendar features large monthly grids that offer ample room for jotting notes, along with six bonus months of July through December of 2020. Also includes moon phases (CST), standard U.S. and international holidays.