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
Screenings-Very dusty gravel
Blocks
A much bigger block with a cavity/hole going through the center.
Regular 4" block with a 90 degree offset.
Concrete block that weighs one tonne.
Bags
Small empty heavy duty sand bag.
Aggregate mix
The bigger thicker blocks up from the 4"
Clause 804
Quarry Products
A tonne bag of sand.