Outer measurements - to fit an A4 frame. Exact mount size 297mm x 210mm.
Inside measurements - exact aperture size 207mm x 120mm. Equal borders of 45mm on each side
1.4mm thick conservation grade white-core.
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Pack of 10 Picture Mounts A4 (Overall Size) With Equal 45mm Borders Black (white-core) - HO6PNKY0S