If you tell us your width and height inches before purchasing, we can tell you how many you need to buy. we recommend you buy it at once. there may be color tone differences in the products you receive at different times. before opening the transparent cargo package, you need to check the accuracy of the number of pieces you received. -1 piece is price.-1 piece is 0.21 m2.-5 pieces 1.05 m2 area containers-size width: 70 cm x height 30 cm-thickness: 4 mm-pattern: brick-100% erasable.-balcony, suitable for between the kitchen bench, back of the tv unit (melts if it takes fire)-tile, wall, glass, wood stick anywhere-product is not breaking cracked flexible foldable.-touch or cut with spring easily. (1. quality) - it may be required to support with silicone on all walls except flat and smooth walls. you can build your own wall with self-adhesive newwall "colored walls" products. developed for users with the new generation of diy culture, your product is suitable for your own style, suitable, industrial variety of colors and patterns easy application provides water, moisture resistant, heat and sound insulation easy to clean, anti-bacterial odor-free building chemicals. the price is more than 100 pcs. Improved version for clearer understanding and better search visibility. Suitable for users seeking detailed and reliable product information.