Inner frame size:

6 inch [inner diameter 10.2*15.3]]

7 inch [inner diameter 12.7*17.8]]

8 inch [inner diameter 15.3*20.3]]

Square 8 inch [inner diameter 20.2*20.2]]

10 inch [inner diameter 20.3*25.4]]

A4 [inner diameter 20.8*29.5]]

16 inch [inner diameter 30*40]]

Square 6 inch

Outer frame size:

Log color hollow 3cm

Walnut hollow 3cm

White hollow 3cm

Black hollow 3cm

Log color hollow 5cm

Walnut hollow 5cm

White hollow 5cm

Black hollow 5cm