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