Heavy Duty: Reliable sturdy design enables free standing boards to keep stable in windy weather, the chalk board easier to fold, carry and store, anti-skid bottom angle, stronger stability, avoid scratching the floor, perfect indoor & outdoor use Double-sided Display: an erasable blackboard on both sides with a dark clean surface that provides smooth space for drawing and writing creations and gets messages delivered toward two directions, attract more attention No Chalk Stains: Perfect magnet board surface is made of magnetic porcelain steel to attract any magnetic accessories, 100% non-porous can be wiped repeatedly with a wet rag without damaging the surface, no ghosting or stains, works perfectly with liquid chalk markers or traditional chalks Multifunctional Use: High-quality magnetic sandwich board is solid and durable, great to use for menus or promotional messages outside your store, pub, or cafe. Also great for wedding receptions, birthday parties, baby announcements