From the website:
Our new kit arrive !
We are very happy to announce you the released of our 30mm miniatures multi part kit for our Grant's spectre army.
We begin by the legs this week.
The kit comprise : 5 different legs cast in resin. Compatible with Blight Wheel Miniatures and popular plastic (or metal) kits
We choose Resin a little more expensive, but the best for cast quality and better for fit on plastic kit.
We choose also to design 5 different legs, not 3 or 4, but 5 because under this number we don't think you can realise a beautiful army with a large number of soldier position.