Size (approx.) cm ※ Frame size: 52.3 x 44.3, Thickness: 2.5 ※ Inner size / Glass size: 50 x 41.9 ※ Mat window size: 34 x 39.4 Wooden frame in natural wood Perfect for art. - Frame material: Wood - Frame color: Natural wood - Mat color: Cream I used to display watercolors in it. I think it's clean with no noticeable stains. For those who understand that it is used. Thank you. Please refrain from purchasing if you are sensitive. I have a dog. Please be aware if you have allergies. I will be listing items while working. I may be slow to respond. Thank you for viewing m(_ _)m