Blocks
A much bigger block with a cavity/hole going through the center.
Chips
Bags
An empty small bag.
Gravel
Aggregate mix
Regular 4" block with a 30 degree offset.
Quarry Products
Plastering sand
4" clean large stone
Screenings-Very dusty gravel
Regular 4" block with a 90 degree offset.
Drainage stone-small smooth rounded stone