From the Infini Model website:

This is not like any other products. Please check it up carefully.
Our cutting matte is not produced using mold. We manufacture them by scribing the acrylic plate using Universal Laser.
After that, we do the primer treatment, orange color coating, UV drying in order.

1.Easy Cutting Mat Type B

B type can cut masking tape in any size you want easily without ruler. Straight line for art knife, circle cutter is needed for curves and circles. Cutting mat type B requires circle cutter, so it will come in handy if you prepare Circle cutter as well. Circle cutter got sold out pretty well in Korea.
There are some brands that produce circle cutter such as Olfa, but the best circle cutter that Suits with easy cutting is the one made by Platz, Japan.