Blocks
Regular sized blocks used for most building jobs.
The bigger thicker blocks up from the 4"
Bags
An empty small bag.
Regular 4" block with a 30 degree offset.
Chips
Gravel
Clause 804
Quarry Products
Plastering sand
A tonne bag of sand.
A much bigger block with a cavity/hole going through the center.
Concrete block that weighs one tonne.
4" clean large stone