Stone Design indoor wall decoration panels are made of high quality and durable gypsum. Stone Design is durable, easy to clean, and does not discolor. The subtle variation in color and shape gives your indoor wall that real stone-look. The light weight panels are easy to install with either a regular thin set mortar (tile adhesive), a molding construction adhesive or a drywall adhesive. The right installation is also based on the subsurface conditions. After treatment with a transparent plaster sealer, the surface is even more easy to keep clean.