Blocks
Regular sized blocks used for most building jobs.
Gravel
Aggregate mix
Quarry Products
Drainage stone-small smooth rounded stone
Regular 4" block with a 90 degree offset.
Bags
An empty small bag.
2" clean medium sized stone
A tonne bag of sand.
Chips
3/8" Chips. Very small stones
Clause 804
The bigger thicker blocks up from the 4"