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