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