1.Material: warter proof, fire-retardant good quality PU. inside is pu foam, bottom is pu leather too.2.Size:40*40cm and 30*60cm3.Installment:easy, similar as your 3d board.put silicon and glue at the back side of panel, stick to the wall directly.4. this product is ECO friendly, water proof , fire retardant,sound proof,mould proof,fexibility-can be bend5. this product can be used both interior and outside, such as background or outside wall of KTV, night bar, cafe bar, conference room, office, living room, lobby,shop, supermarket , resturant, bath room and so on, effect is excellect