Blocks
Regular 4" block with a 30 degree offset.
Bags
An empty small bag.
Regular 4" block with a 90 degree offset.
Quarry Products
Plastering sand
Small empty heavy duty sand bag.
A much bigger block with a cavity/hole going through the center.
Concrete block that weighs one tonne.
Gravel
Clause 804
Chips
3/8" Chips. Very small stones
4" clean large stone
Aggregate mix