8 X 8 inch, Mounts & Backs, Pack of 10 Aperture size:To fit image size 6 x 6 - exact aperture size 146mm x 146mm Outer Size to fit a

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

Outer Size to fit a 12 x 12 inch frame - exact outer size 302mm x 302mm

Outer Size to fit a 8 x 8 inch frame - exact outer size 201mm x 201mm

Outer Size to fit a 13 x 13 inch frame - exact outer size 328mm x 328mm

Outer Size to fit a 16 x 12 inch frame - exact outer size 404mm x 302mm

8 X 8 inch, Mounts & Backs, Pack of 10 Aperture size:To fit image size 6 x 6 - exact aperture size 146mm x 146mm Outer Size to fit aOuter Size to fit a 8 x 8 inch frame exact outer size 201mm x 201mm 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.