A3, 420 x 297 mm, Mounts only, Pack of 10 11x11 Outer Size to fit a

Outer Size to fit a 7 x 7 inch frame - exact outer size 175mm x 175mm

The cellophane bags supplied with this size will be 14 x 11 inches

Outer Size exactly 500mm x 400mm

Outer Size to fit an A1 frame - exact outer size 841mm x 594mm

A3, 420 x 297 mm, Mounts only, Pack of 10 11x11 Outer Size to fit aOuter Size to fit an A3 frame exact outer size 420mm x 297mm Choice of aperture size Scroll through the pictures to find the size that best fits your artwork, then select it from the dropdown menu. Choice of colour On screen colours may not be true to life. Order colour samples here. Select your preferred colour from the dropdown menu. All colours are acid free white core mountboard, 1. 4mm thick.