Inner frame size:

Gold [paste on the wall horizontal and vertical Universal]]

Silver [paste on the wall horizontal and vertical Universal]]

Red [paste on the wall horizontal and vertical Universal]]

Black [paste on the wall horizontal and vertical Universal]]

Frame size:

A3 can put inner core [297 * 420mm]]

A4 can put inner core [210 * 297mm]]

A5 can put inner core [148 * 210mm]]

8K can put inner core [260 * 380mm]]

16K inner core can be placed [190 * 260mm]]