Arrow Shed AK600 Earth Anchor Kit, Steel-stainlessAK600 Features: -Includes 4 corkscrew type anchors, 4 corner gussets and 4 locking washers -Great for anchoring small and slope roof buildings. -Fits steel buildings up to 10x13 ft -Ground Anchors or Concrete Anchors are also recommended. Product Type: -Anchor Kit. Material: -Steel. For Use With: -S..