1/2″ Chips, small stones, the next size up from 3/8″ chips. Suitable for driveways also. It is sold lose by the tonne.
Blocks
The bigger thicker blocks up from the 4"
Gravel
Aggregate mix
Regular 4" block with a 90 degree offset.
Clause 804
Regular 4" block with a 30 degree offset.
Regular sized blocks used for most building jobs.
Screenings-Very dusty gravel
Concrete block that weighs one tonne.
A much bigger block with a cavity/hole going through the center.