Blocks
A much bigger block with a cavity/hole going through the center.
Regular 4" block with a 30 degree offset.
Gravel
Clause 804
Concrete block that weighs one tonne.
Quarry Products
A tonne bag of sand.
Regular 4" block with a 90 degree offset.
Bags
An empty small bag.
4" clean large stone
Chips
Screenings-Very dusty gravel
Small empty heavy duty sand bag.