180 x 130 mm, Mounts & Backs, Pack of 10 Aperture size:Equal borders of 30mm - exact aperture size 120mm x 70mm Outer Size to fit a

Outer Size to fit a 20 x 16 inch frame - exact outer size 505mm x 404mm

For larger amounts please increase the quantity

30cm x 21cm

Then the excess length can folded down and sealed with the self-adhesive flap in the normal way

180 x 130 mm, Mounts & Backs, Pack of 10 Aperture size:Equal borders of 30mm - exact aperture size 120mm x 70mm Outer Size to fit aOuter Size exactly 180mm x 130mm, 18cm x 13cm 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.