Screenings-Very dusty gravel
Screenings(very dusty gravel) has a number of versatile uses. It is sold lose by the tonne.
Drainage stone-small smooth rounded stone
A much bigger block with a cavity/hole going through the center.
An empty small bag.
Small empty heavy duty sand bag.
2" clean medium sized stone
Concrete block that weighs one tonne.
4" clean large stone
Regular 4" block with a 30 degree offset.