Blocks
Regular 4" block with a 90 degree offset.
Regular sized blocks used for most building jobs.
Bags
Small empty heavy duty sand bag.
A much bigger block with a cavity/hole going through the center.
The bigger thicker blocks up from the 4"
Gravel
Clause 804
Chips
3/8" Chips. Very small stones
Quarry Products
Drainage stone-small smooth rounded stone
Screenings-Very dusty gravel
Plastering sand
Concrete block that weighs one tonne.