An empty small bag.
An empty small bag which can be filled with 4 stone weight of sand, gravel or chips. Bought on its own as an empty bag.
Gravel
Clause 804
Chips
Quarry Products
A tonne bag of sand.
Blocks
Concrete block that weighs one tonne.
4" clean large stone
Regular sized blocks used for most building jobs.
A much bigger block with a cavity/hole going through the center.
2" clean medium sized stone
Bags
Small empty heavy duty sand bag.
Regular 4" block with a 90 degree offset.