A tonne bag of sand.
A tonne bag of sand made up in store and ready to be collected.
Blocks
Regular sized blocks used for most building jobs.
Concrete block that weighs one tonne.
Gravel
Clause 804
A much bigger block with a cavity/hole going through the center.
Quarry Products
Drainage stone-small smooth rounded stone
Screenings-Very dusty gravel
Regular 4" block with a 90 degree offset.
Chips
The bigger thicker blocks up from the 4"