Board Dudes 15 x 20 Inches Clingz Dry Erase Wall Calendar, Includes 1 Marker (DFB40) 15" x 20" white erasable self-adhesive dry-erasable monthly calendar sheet Includes 1 black dry erase marker Perfect for organizing at home, work or in class! Also great for children who enjoy writing on walls! No mounting hardware needed! Just peel and stick on! Conserve paper by using a dry erase board