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