Inner frame size:

White-without specimen

Black-without specimen

Walnut-without specimen

Log color-without specimen

Outer frame size:

5 inch [inner diameter 8.9*12.7] cm (real glass)

6 inch [inner diameter 10.2*15.2] cm (real glass)

7 inch [inner 12.7*17.8] cm (real glass)

8 inch [inner diameter 15.2*20.3] cm (real glass)

10 inch [inner diameter 20.3*25.4] cm (real glass)

A4 [inner 21*29.7] cm (real glass)

Square 6 inches [15.1*15.9] cm (real glass)

Square 7 inches [inner diameter 17.8*18.5] cm (real glass)

Square 8 inch [inner diameter 20.3*21] cm (real glass)

A3 [29.7*42cm] (plexiglass)