Subject (Artwork or Image size) - 17.9 x 24.9 cmOpening: 17.9 x 24.9 cm (2.25 - 2.25 - 2.25 - 2.25)Approximate Exterior Frame Size (cm): 24.9 x 31.9 cmMoulding: 1515-BLACKTop Mount: A-POLAR-WHITE (22.4 x 29.4) - Textured White Polar WhiteDouble Mount: D2010 (0.5) - Black White CoreTrueVue Glazing (Anti-Reflect) Not over 50 x 40cm (22.4 x 29.4)White Core Backing (Textured White) + MDF backing (22.4 x 29.4)Slip on Hanger (Suitable smaller frame sizes))