Gravel
Screenings-Very dusty gravel
Blocks
Regular 4" block with a 90 degree offset.
Bags
An empty small bag.
Regular sized blocks used for most building jobs.
Quarry Products
Plastering sand
Clause 804
Chips
3/8" Chips. Very small stones
Aggregate mix
A much bigger block with a cavity/hole going through the center.
Small empty heavy duty sand bag.