벽지, or wall paper, is a decorative material used to cover and enhance the appearance of interior walls. It comes in various designs, colors, and textures, allowing homeowners to personalize their living spaces. 벽지 can be made from paper, vinyl, or fabric, and is often applied with adhesive. In addition to aesthetics, 벽지 serves practical purposes, such as protecting walls from damage and improving insulation. It can also help reduce noise levels in a room. Many people choose 벽지 for its versatility and the ease with which it can be replaced or updated, making it a popular choice in home decor.