Board size: 150x300 mm (when folded into 2), square size:30 mm - 17.5$;
Board size: 175x350 mm (when folded into 2), square size:35 mm - 19.5$;
Board size: 200x400 mm (when folded into 2), square size:40 mm - 22.5$;
Board size: 240x480 mm (when folded into 2), square size:50 mm - 28.5$;
Board size: 265x530 mm (when folded into 2), square size:55 mm - 33$.
