Gravel
Clause 804
Blocks
Screenings-Very dusty gravel
Bags
Small empty heavy duty sand bag.
Regular 4" block with a 90 degree offset.
Chips
Concrete block that weighs one tonne.
Aggregate mix
Quarry Products
A tonne bag of sand.
Regular 4" block with a 30 degree offset.
A much bigger block with a cavity/hole going through the center.
An empty small bag.