- Opening size is 4.5"x6.5" inches for 5x7 Pictures
- These Mats Come in Assorted Colors (each order may vary / comes in random colors).
- Set of 25 Mixed Colors 8x10 White Core Picture Frame Mats
- Mats are beveled cut and are 4-ply thick (1.4 mm or 1/16 inch),
- All acid free, perfect from hobbies to art gallery exhibits