Blocks
A much bigger block with a cavity/hole going through the center.
Gravel
Aggregate mix
Bags
An empty small bag.
Quarry Products
4" clean large stone
A tonne bag of sand.
Drainage stone-small smooth rounded stone
2" clean medium sized stone
Regular 4" block with a 90 degree offset.
An empty big bag.
Small empty heavy duty sand bag.
Regular sized blocks used for most building jobs.