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
Aggregate mix
Chips
3/8" Chips. Very small stones
Blocks
Quarry Products
Plastering sand
Regular 4" block with a 30 degree offset.
Concrete block that weighs one tonne.
A tonne bag of sand.
Clause 804
A much bigger block with a cavity/hole going through the center.
The bigger thicker blocks up from the 4"