Cohas Chalkboard System Milestone Boards are designed to look like a real chalkboard you can use again and again. These milestone boards are perfect for capturing memories year after year and allowing you to watch your children grow! This pair of first and last day boards feature iconic school items designed in real chalk art, and a smooth, satin chalkboard style surface. This kit comes with three pastel wet-wipe liquid chalk markers. The premium markers feature a chisel 6mm tip, perfect for making thick and thin chalk-like lines about 1/8-inches wide. The markers' wet-wipe ink means they will remove easily with water. When using other brand markers, certain colors and brands may cause staining and damage to the board; test markers in a small section before writing on your board. Do not use real chalk on this board.Milestone boards are easy to clean and reuse. Simply write the year, your child's name, and other information on the board and allow to dry. Once your photo shoot is over, use water or a gentle cleaner like Windex to remove your marker's ink. Do not use abrasive cleaners or magic erasers; they will damage the board's surface. Rewrite on the board again and again! Each board features real chalk art and a chalkboard embedded onto a hardboard material, then cut to size. Rounded corners are stamped to avoid sharp edges. Finished boards each measure 15 by 20 inches, by 0.13 inches thick. Ziggyboard has now become Cohas! Still providing the same products and customer service you’ve come to know and love, but under a new name! And new to the change, Cohas products purchased through authorized resellers come with a one-year warranty! Safe in your home. Markers have the CE mark, meet Toy Safety Regulation EN-41, and bear AP Seal ASTM D4236. Board is GREENGUARD Gold Certified by UL (Underwriter Laboratories), ensuring it is safe for use in environments like schools and healthcare facilities.