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