From the website:
Set contains 5 Shredders. Shredder body arms and banner have 3x1mm magnet type holes, as it is shown on picture 3. Models are designed to fit 28mm "heroic" tabletop wargames scale, (max 40mm height, fro foot to top of backpack) supplied unassembled and unpainted. Designed by AR, sculpted by Maciej Powarunas and AR.