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.
Quarry Products
A tonne bag of sand.
Bags
An empty small bag.
Gravel
Clause 804
Blocks
A much bigger block with a cavity/hole going through the center.
The bigger thicker blocks up from the 4"
Chips
Plastering sand
Aggregate mix
Regular sized blocks used for most building jobs.
Regular 4" block with a 90 degree offset.
2" clean medium sized stone
Concrete block that weighs one tonne.