5 X 5 inch, Mounts & Backs, Pack of 10 12x12 Outer Size exactly 300mm x

Outer Size exactly 300mm x 210mm

Outer Size to fit a 9 x 9 inch frame - exact outer size 226mm x 226mm

Outer Size exactly 180mm x 130mm

All colours are acid-free white-core mountboard

5 X 5 inch, Mounts & Backs, Pack of 10 12x12 Outer Size exactly 300mm xOuter Size to fit a 5 x 5 inch frame exact outer size 124mm x 124mm 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.