Bags
Small empty heavy duty sand bag.
Gravel
Clause 804
Blocks
Quarry Products
A tonne bag of sand.
Chips
3/8" Chips. Very small stones
Regular 4" block with a 30 degree offset.
Concrete block that weighs one tonne.
Screenings-Very dusty gravel
Plastering sand
A much bigger block with a cavity/hole going through the center.