Set of 10 13x19 inches Black Picture Frame Mats for 11x17 Pictures
Opening size is 10.5" x 16.5" for 11x17 picture
Acid-free, bevel cut, white core, 4-ply thickness
It can be used in addition to a frame or standalone. It makes a great gifts or decorations, whether it is at your home or office, for friends and family