18x24 mat with openings for 16-2.5"x3.5"  cards & 1-8"x10" photo 
Openings cut a bit smaller to cover edges of cards and photos
If you need multiples of this mat-please contact me
This picture framing mat or matting  is a matboard (heavy paper-based pH neutral material with printed decorative facing paper  ) to be used on a photo or picture to enhance and give a finished look to a photograph or artwork when place into a frame. It is designed to be placed in a frame (it is NOT the frame and does not stand alone.)   It also serves as added protection separating the art or photo from the glass.  This size mat is a standard size which will fit into frames purchased from Walmart, Michaels, Hobby Lobby, Target etc.  Hope this answers your question. 
Regular matboard
pH neutral-4-ply 
Size:
1 ea. 18"x24" " outer size  (for standard frame)
Openings:  16 openings for 2.5"x3.5" cards cut a bit smaller to cover edges & 1 opening for 8"x10" photo (cut a bit smaller to cover edges of photo)
BLACK WITH RED LINER 
ALSO AVAILABLE IN ANY TEAM OR SCHOOL COLORS !!  PLEASE MESSAGE ME AND I WILL MAKE A LISTING IN YOUR COLOR COMBINATION.  I discount for multiple orders-PLEASE MESSAGE ME !
THESE MATS WOULD MAKE GREAT  MAT  FOR YOUR  SPECIAL PHOTOS
We can cut any size mats with a variety of mat opening shapes-please contact me for prices and styles !!
CHECK OUT MY OTHER GREAT MAT OFFERS IN MY EBAY STORE-SKINNY DOG ART--OR LOOK FOR MY SELLER NAME-TANGOV !!!
I ACCEPT PAYPAL
Thank you for looking !!!
This picture framing mat or matting  is a matboard (heavy paper-based pH neutral material with printed decorative facing paper  ) to be used on a photo or picture to enhance and give a finished look to a photograph or artwork when place into a frame. It is designed to be placed in a frame (it is NOT the frame and does not stand alone.)   It also serves as added protection separating the art or photo from the glass.  This size mat is a standard size which will fit into frames purchased from Walmart, Michaels, Hobby Lobby, Target etc.  Hope this answers your question. 
Sorry-No International shipping. I do not ship on Sundays or US holidays. If your mat order is a special or custom cut order-please know that it might take me a couple of extra days to cut & ship-especially if it is a large mat order or if you have chosen colors that I do not have in stock.IF THIS ORDER IS VERY TIME-SENSITIVE TO YOU, PLEASE LET ME KNOW AND I WILL MAKE EVERY EFFORT TO SHIP AS SOON AS POSSIBLE.  I am a small operation and we cut all of my mats in shop, so please be kind.  If you have any problem with your purchase or my service, please contact me.  I make every effort to have happy, repeat customers !!!!