Bags
An empty big bag.
Blocks
A much bigger block with a cavity/hole going through the center.
Regular 4" block with a 30 degree offset.
Concrete block that weighs one tonne.
The bigger thicker blocks up from the 4"
Quarry Products
2" clean medium sized stone
4" clean large stone
Gravel
Aggregate mix
Screenings-Very dusty gravel
A tonne bag of sand.