The Post-it ® Super Sticky Dry Erase Surface is designed to stick to a variety of painted drywall and steel surfaces, glass, finished wood, and existing whiteboards or chalkboards. The Post-it ® Super Sticky Dry Erase Surface is easy to install and requires no tools â€“ just unroll, peel and stick. Utilizing a proprietary dry erase coating, the Post-it ® Super Sticky Dry Erase Surface is stain-proof, erases cleanly every time and writes smoothly. From horizontal applications on desks or tables to vertical applications on surfaces where traditional whiteboards cannot be installed, such as windows, the Post-it ® Super Sticky Dry Erase Surface can be cut-to-fit and provides endless possibilities for dry erase solutions in new places. Itâ€™s even great for replacing old dry erase surfaces that may be ghostedâ€”simply apply over the existing board and it looks new again.