Keepsake Guest Book Black Frame. Each frame measures 17.5" x 21.5" with 4" white mat. Photo size is for an 8" x 10". Celebrate any special day with the thoughtful words of your guests surrounded by your favorite photo. An 8" x 10" photograph is centered inside this black frame with white photo mat. We recommend using an acid free fine point pen for preservation of signatures (not included). This Guest Book Frame is perfect for weddings, birthdays, anniversaries, graduations, or any special event.