Blocks
The bigger thicker blocks up from the 4"
Regular sized blocks used for most building jobs.
Gravel
Aggregate mix
Quarry Products
A tonne bag of sand.
Regular 4" block with a 90 degree offset.
Chips
3/8" Chips. Very small stones
Bags
An empty small bag.
Drainage stone-small smooth rounded stone
Screenings-Very dusty gravel
4" clean large stone