500 x 400 mm, Mounts, Backs, & Bags, Pack of 10 Colour:Smoke These backing boards are made

These backing boards are made from the same quality mountboard as our mounts

Outer Size to fit an A5 frame - exact outer size 210mm x 148mm

Outer Size to fit a 5 x 5 inch frame - exact outer size 124mm x 124mm

50cm x 40cm

Outer Size exactly 500mm x 400mm

500 x 400 mm, Mounts, Backs, & Bags, Pack of 10 Colour:Smoke These backing boards are madeOuter Size exactly 500mm x 400mm, 50cm x 40cm 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.