From Duncan Louca, these are miniature battle tank variants, I believe the original scale is for 10 mm wargames, but i can scale them up for 15 mm. These models require slicer supports, and may have slight scarring on the back where the supports were located. A lot of times once the model is painted, these are barely noticeable, and as you can see from the pictures, the rest of the model turns out beautifully.