A tonne bag of sand.
A tonne bag of sand made up in store and ready to be collected.
Blocks
A much bigger block with a cavity/hole going through the center.
Chips
The bigger thicker blocks up from the 4"
Bags
Small empty heavy duty sand bag.
Gravel
Clause 804
Concrete block that weighs one tonne.
Quarry Products
4" clean large stone
3/8" Chips. Very small stones
Regular 4" block with a 90 degree offset.
An empty small bag.
Regular 4" block with a 30 degree offset.