Dry erase rectangular paddles are two sided. Front side has plain dry erase surface. Back side of paddle has a clear dry erase sleeve with a 2 sided (Graph/Lined) insertable template and has the ability to customize templates. Included markers fit in the handle of the dry erase paddle. Paddle colors are Red, Blue, Green, Yellow, Pink, and Orange. 12-Pack Classroom Set includes 12 paddles (2 each of 6 colors), 24 templates (lined and graph), 12 dry erase markers with eraser and 1 microfiber cleaning cloth. 24-Pack Classroom Set includes 24 paddles (4 each of 6 colors), 48 templates (lined and graph), 24 dry erase markers with eraser, 2 microfiber cleaning cloths. 36-Pack Classroom Set includes 36 paddles (6 each of 6 colors), 72 templates (lined and graph), 36 dry erase markers with eraser and 3 microfiber cleaning cloths. Replacement Rectangular Dry Erase Sheets: Just peel and stick over old surface. 8" x 10" writing surface. 8 sheets per pack.