Clause 804(less dust than screenings) has a whole range of versatile uses. It is sold lose by the tonne.
The bigger thicker blocks up from the 4"
A much bigger block with a cavity/hole going through the center.
Regular sized blocks used for most building jobs.
An empty big bag.
Drainage stone-small smooth rounded stone
Regular 4" block with a 30 degree offset.
Regular 4" block with a 90 degree offset.
An empty small bag.