The mat is acid-free and will not discolor the picture.
Front protection in plastic makes the frame safer to use.
Picture without mat, width: 8 "
Picture without mat, height: 10 "
Picture with mat, width: 5 "
Picture with mat, height: 7 "
Mat opening, width: 5 "
Mat opening, height: 7 "
Frame width: 9 "
Frame height: 11 "