Blocks
A much bigger block with a cavity/hole going through the center.
Regular 4" block with a 30 degree offset.
Regular sized blocks used for most building jobs.
Chips
Concrete block that weighs one tonne.
Gravel
Clause 804
Regular 4" block with a 90 degree offset.
Bags
An empty big bag.
Quarry Products
A tonne bag of sand.
Screenings-Very dusty gravel