Gravel
Aggregate mix
Blocks
A much bigger block with a cavity/hole going through the center.
Concrete block that weighs one tonne.
Chips
Quarry Products
Drainage stone-small smooth rounded stone
Bags
An empty big bag.
4" clean large stone
An empty small bag.
3/8" Chips. Very small stones
Regular sized blocks used for most building jobs.
Small empty heavy duty sand bag.