Included 2mm beige cardboard with pre-cut openings fits corresponding artworks perfectly, so the Wood Frame requires no extra trimming before use. Hidden marble positioning switch paired with marble mechanism and copper rod support makes the Wooden Frame easy to open for quick content replacement. Walnut Wood Picture Frame features traditional mortise-and-tenon joinery with no nails, ensuring a stable structure while preserving the natural texture of wood. Crafted from premium black walnut wood, acrylic, and sturdy backboard, the Walnut Frame long-lasting durability and a sophisticated aesthetic for home decor. Ideal for displaying, photos, or DIY art pieces, the Wooden Picture Frame adds a warm, natural touch to tabletops or shelves in living rooms, offices, or bedrooms.