Approx 3-4mm picture would be hide in viewing window to hold the picture.
eBay
Photo Frame Picture Decor Picture Frame Award Holder A3 30 X 42 Cm Poster Desktop Blank Mounting Wall Hanging Metal Poster Frame
Aliexpress UK
Chunky moulding! Moulding Material : Composite Wood warpped in wooden texture foil. There is protective plastic film on both side of the styrene sheet. Picture shown are for illustration purpose only.
eBay
Picture Frame Metal Poster Frame Classic Aluminum Photo Frames For Wall Hanging A3 A4 30x30 Certificate Frame VCC
Aliexpress UK
Chunky moulding! There is protective plastic film on both side of the styrene sheet. Moulding Material : Composite Wood warpped in wooden texture foil. Picture shown are for illustration purpose only.
eBay
Metal Picture Frame For Wall Poster Frame Pictures Classic Aluminum Photo Frames For Wall Hanging A3 A4 30x40 Certificate Frame
Aliexpress UK
Portrait or landscape.
eBay
Acrylic Photo Frame Wooden Photos Frame Nordic Photo Frame For Wedding Photo Picture Frame Desktop Office Photo Decor
Aliexpress UK
The mount viewing window will be slightly smaller than the size given, approx 3mm of your picture will be covered on each side. The viewing window will be slightly smaller than the size given, approx 4mm of your picture will be covered on each side, this is to hold everything in place.
eBay
Acrylic Photo Frame Wooden Photos Frame Nordic Photo Frame For Wedding Photo Picture Frame Desktop Office Photo Decor
Aliexpress UK
Ready to use them as a landscape or portrait. bigger (Moulding Size).
eBay
5Pack Magnet Picture Frame Children Art Picture Holder Wall Photo Organizer Display for Home Office Advertise,A3/A4/A6/30x30cm
Aliexpress UK
Chunky moulding! Moulding Material : Composite Wood warpped in wooden texture foil. There is protective plastic film on both side of the styrene sheet. Picture shown are for illustration purpose only.
eBay
Nature Wooden Classic Photo Picture Frame A4 A3 Black White Coffee Wood Color Certificate Frame with glass for Wall Poster Frame
Aliexpress UK
The Perspex/ styrene is just as clear as glass if not even clearer. The sheet is has very high clarity and there is no difference from glass once up on the wall.
eBay
3pcs Classic Black Wood Color Wooden Photo Frame A3 A4 Picture Frame Poster Canvas Frame for Wall Mounting Desktop Display
Aliexpress UK