From the announcement:
Critical Mass Games has added 3UP deals on the entire MASKFX range. Additionally until October 31st 2013 we are offering free shipping on all orders over £50.00 across all Critical Mass Games Product ranges.
The 3UP deals contain 3 sheets of MASKFX and are available on the online store, and provide a 20% discount on the individual sheet price.
MASKFX is a simple to use Camouflage Masking system allowing you to create intricate camouflage patterns quickly and effectively with an airbrush or spray can.
With designs in both 15mm and 28mm you can achieve some stunning results.