Blocks
Regular 4" block with a 90 degree offset.
Quarry Products
2" clean medium sized stone
A much bigger block with a cavity/hole going through the center.
Chips
3/8" Chips. Very small stones
Concrete block that weighs one tonne.
The bigger thicker blocks up from the 4"
A tonne bag of sand.
Regular sized blocks used for most building jobs.
Drainage stone-small smooth rounded stone
Regular 4" block with a 30 degree offset.