The chalkboard easily erase the markings off the blackboard sticker by damping the cloth. They are proved to be acid-free and safe for both kids and adults. GRID PRINT FOR EASY CUTTING：Printed with grids for guiding straight cuts on the backing paper.No need for a ruler, you can the chalk paper to any shape or size using the grid on the back as a guide,cover any area, small or large with the chalkboard decal,easy to install.
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