Blocks
A much bigger block with a cavity/hole going through the center.
Concrete block that weighs one tonne.
Chips
3/8" Chips. Very small stones
Bags
An empty small bag.
Gravel
Screenings-Very dusty gravel
An empty big bag.
Aggregate mix
Regular 4" block with a 90 degree offset.
The bigger thicker blocks up from the 4"
Quarry Products
4" clean large stone