A4 mount (297mm x 210mm) with 2 windows cut. 
The top window is for a 6" x 4" photo in portrait.
The bottom aperture is for a 5 x 3 in card for an autograph or a second photo.

It is a Bevel Cut Aperture. This has been cut a 45 degrees by our computerised mount cutter. 

Measurement provided in the title is the External Mount size and Internal Aperture sizes.. 
Fits a standard A4 sized frame.

Please note that the internals for the 6x4 and 5x3 are cut 10mm smaller so that you can tape your photo / photograph / picture to the mount, if required.
If you need this to be different, please add a note in messages when you place the order.

Pack Comprises of 1 x Mount and 1 x A4 Backboard