An empty big bag.
An empty big bag which can hold a tonne of sand, gravel or chips. Bought on its own as an empty bag.
Blocks
A much bigger block with a cavity/hole going through the center.
Regular 4" block with a 90 degree offset.
The bigger thicker blocks up from the 4"
Gravel
Screenings-Very dusty gravel
Regular 4" block with a 30 degree offset.
Clause 804
Quarry Products
A tonne bag of sand.
Drainage stone-small smooth rounded stone
Chips
2" clean medium sized stone