Black Mathematical Symbols Wall Decals: Black math symbols wall stickers, a variety of mathematical calculations in the symbols combined together, as well as the pattern of the book, so that children swim in the sea of knowledge. Reliable and Durable: Made of self-adhesive PVC material,these black silhouette reed duck wall decals are reliable and durable,safe to use, bright and lasting color,not easy to fade,can maintain luster for a long time,stickers also have adhesive,not easy to fall off,make your home more charming and charming.Size:39*95cm. Wide Use: These cactus tropical wall decor can be widely used in living room,vanity,TV wall,bathroom,bedroom,classroom,nursery,library,entrance corridor,wardrobe door,glass window,etc.,so that these places get rid of the monotonous,add vitality. Wall Applicability: The company's wall paste is suitable for flat brush wall,glass surface,wood surface,ceramic surface,stainless steel plate surface,not suitable for brick wall.Cracked walls,rough walls,fabric wallpaper,easy to fall off.Semi-transparent materials may not display well on transparent surfaces, so these wall stickers are not recommended for glass. Easy to Paste and Peel: Can be pasted on many smooth,flat,dry,clean surfaces,easy to paste or remove,no issues,just peel them off,and then stick where you like,these stickers can stay for a long time without falling off.