From the release:
LaserCutCard has updated its range of scenic bases for the forces of CHAOS.
These designs are easy to use, easy to paint - just glue them on to a standard 24mm base and paint. There are 6 different designs. They are laser cut into 1mm thick cardboard and the diameter of the card disk is 22mm.
The plastic base is NOT INCLUDED.
There are 12 in a set but if you use the positive and negative bases, you can get 24 bases out of each set (except for one design, which can only give you 12 bases)
The price is $5.95 per set and the postage is free worldwide.