A tonne bag of sand.
A tonne bag of sand made up in store and ready to be collected.
Blocks
Chips
3/8" Chips. Very small stones
Bags
An empty small bag.
Gravel
Clause 804
Concrete block that weighs one tonne.
Quarry Products
2" clean medium sized stone
A much bigger block with a cavity/hole going through the center.
Drainage stone-small smooth rounded stone
Regular 4" block with a 90 degree offset.
Regular sized blocks used for most building jobs.