Screenings-Very dusty gravel
Aggregate mix
4" clean large stone
3/8" Chips. Very small stones
Regular 4" block with a 30 degree offset.
2" clean medium sized stone
The bigger thicker blocks up from the 4"
Concrete block that weighs one tonne.
Clause 804
Regular 4" block with a 90 degree offset.
A much bigger block with a cavity/hole going through the center.