The frames are made of high-quality recycled polystyrene with a nice arc finish, durable, and environmentally friendly. Clear high definition acrylic protect your photos from dust, moisture, and scratches, make your pictures great for years. NOTE: Please tear off the protective film from both sides of acrylic before use. It is made to display 18" x 24" pictures. Opening Size 17.4" x 23.4", 0.5" wide and 0.75" thick molding. Overall size is 18.5" x 24.5" x 0.75". Preserving that wonderful memorial with our fantastic collection of frames. The elegant design is suitable for different occasions like Weddings, Anniversaries, Birthdays, and Various Festivals. Turn any bare wall into a gallery of your own with this excellent frame, the perfect gift for family and friends. Frame Details: • Made of high-quality recycled polystyrene with a nice arc finish, durable, and environmentally friendly • Clear high definition acrylic protect your photos from dust, moisture, and scratches • Made to display 18" x 24" pictures. Opening Size 17.4" x 23.4", 0.5" wide and 0.75" thick molding, overall size is 18.5" x 24.5" x 0.75" • NOTE: Please tear off the protective film from both sides of acrylic before use.