Size of Frame: The inner dimensions of the picture frame are A4 ( 21.00 x 29.70 CM ). In order to better fix the photo, the frame opening display will be smaller than the photo, which can be better for poster frames, wall gallery decor, weddings, Christmas, certificates, and diamond painting displays; this is not a product defect. The molding is MDF , 30MM wide, 15mm deep CLASSIC TOUCH - Our wall frames feature a white beveled mat that can be removed to reveal an A4 ( 21.00 x 29.70 CM ) photo display. The molding measures MDF , 30MM wide, 15mm deep Durable Material: Crafted from lightweight and durable MDF Wood materials, these frames feature high-definition Perspex that prevents scratches and damage to your pictures. Remember to remove the protective films on both sides of the Perspex before use. Superior Quality and Protection: This photo frame includes a sleek Perspex front for clear viewing and protection, a strong backboard for stable picture display, and convenient turn buttons for easy photo insertion and changes. FRAME FEATURES: Lightweight and durable Perspex offers dependable protection for your prized artwork, photos, and collectibles. This high-quality Perspex is designed to preserve your prized things from dust, moisture, and damage while also providing a lovely showcase.