Bags
An empty small bag.
Blocks
A much bigger block with a cavity/hole going through the center.
Regular sized blocks used for most building jobs.
Quarry Products
4" clean large stone
Chips
3/8" Chips. Very small stones
Gravel
Aggregate mix
Screenings-Very dusty gravel
Regular 4" block with a 30 degree offset.
Plastering sand
An empty big bag.
Concrete block that weighs one tonne.