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
4" clean large stone
Blocks
Concrete block that weighs one tonne.
Chips
Regular 4" block with a 90 degree offset.
The bigger thicker blocks up from the 4"
Bags
An empty small bag.
A much bigger block with a cavity/hole going through the center.
3/8" Chips. Very small stones
Gravel
Clause 804
Regular 4" block with a 30 degree offset.