Inner frame size:

Gold [single pack]]

Silver [single pack]]

Red [single pack]]

Black [single pack]]

Gold [2 pack]]

Silver [2 packs]]

Red [2 packs]]

Black [2 pack]]

Gold [5 pack]]

Silver [5 packs]]

Red [5 packs]]

Black [5 pack]]

Gold [10 pack]]

Silver [10 packs]]

Red [10 pack]]

Black [10 pack]]

Gold-double-sided [single pack]]

Silver-double-sided [single pack]]

Gold-double-sided [2 pack]]

Silver-double-sided [2 pack]]

Gold-double-sided [5 pack]]

Silver-double-sided model [5 packs]]

Gold-double-sided [10 pack]]

Silver-double-sided model [10 pack]]

Frame size:

A4 inch [can put the core size 21 * 29.7cm] horizontal and vertical Universal

A3 inch [can put the core size 29.7 * 42CM] horizontal and vertical Universal

8K/open [can put the core size 26.6 * 38.2cm] horizontal and vertical Universal

4K/open [can put the core size 38.2*53.2cm] horizontal and vertical Universal

A2 inch [can put the core size 40 * 60CM] horizontal and vertical Universal

[Painting core size 50 * 70CM] horizontal and vertical Universal

[Painting core size 60 * 80CM] horizontal and vertical Universal