Mainstays 20" x 30" Plastic Picture Frames, Black: Designed for posters, art prints and photo enlargements Made with polystyrene plastic Features 20" x 30" poster frame opening The Mainstays poster frame is suitable for vertical or horizontal wall displays Economical and lightweight Display portraits, panoramic photos, paintings and more Sleek black design Includes a hard backing to keep images flat during hanging Suitable for home, office and business use