Want an easy way to share a lot of photos? These custom posters can be personalized in minutes and make great gifts for kids or teens' rooms. Printed on tear-resistant polystyrene for durable, kid-friendly use, they make great party decorations for graduations and birthdays, too. The large 36" x 24" horizontal size fits 23 square photos in the grid design, with the addition of one color block filled with text which you can edit to say anything you like. Choose from over 70 colors, chalkboard or kraft paper for the background in this box and coordinate these custom posters with your home or party decor. They are weather resistant for short-term outdoor use as well!