PRESERVE YOUR ART - Includes acid-free, 4-ply bright white 100% cotton museum board, ensuring long-lasting protection against deterioration and discoloration for your cherished prints. PROFESSIONAL PRESENTATION - Each kit contains a bevel-cut window mat, providing a clean, elegant display that enhances the visual appeal of your 11x14' prints within a 16x20' frame. COMPLETE DISPLAY KIT - Comes with 1/8' acid-free foam board backing, crystal clear bag with self-adhesive closure, clear mounting corners, and Tyvek tape for secure and archival mounting. PERFECT FIT - Designed for 11x14' prints with a precise 10.5x13.5' opening, ensuring your artwork is perfectly framed and showcased within the 16x20' mat size.