300 x 210 mm, Mounts only, Pack of 10 16x20 This means that the 1

This means that the 1 inch excess in width will need to be folded to the back of the mount and held in place using clear self-adhesive tape

Outer Size exactly 180mm x 130mm

Outer Size to fit a 10 x 10 inch frame - exact outer size 251mm x 251mm

Outer Size to fit a 6 x 4 inch frame - exact outer size 150mm x 99mm

Outer Size exactly 250mm x 200mm

300 x 210 mm, Mounts only, Pack of 10 16x20 This means that the 1Outer Size exactly 300mm x 210mm, 30cm x 21cm 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.