A 16" x 20" Rustic Gray Wood Shadow Box Frame, built with high-quality natural materials, lets you preserve your memories for a lifetime. You can keep your concert tickets, awards, and photos safe with this organizer, and protect your most precious memories. A solid black backboard comes with the poster to make it easy to hang on your wall. Its dimensions are 21.5” x 18.5” x 3”. Display opening of 15.5”.display opening of 15.5easy to hang, comes with a solid black hanger-back board to mount on to the wallhandmade - no two will be exactly alikeplenty of room to show off your memories.shadow box outside dimensions are 17.5?w x 21.5?h with 2.75? deep