Blocks
A much bigger block with a cavity/hole going through the center.
Chips
3/8" Chips. Very small stones
The bigger thicker blocks up from the 4"
Quarry Products
Plastering sand
A tonne bag of sand.
Drainage stone-small smooth rounded stone
Gravel
Clause 804
Regular sized blocks used for most building jobs.
Bags
An empty big bag.
2" clean medium sized stone
Concrete block that weighs one tonne.