Small empty heavy duty sand bag.
Small empty heavy duty sand bag (GREEN) 4FT LONG X 1FT WIDE.
Blocks
A much bigger block with a cavity/hole going through the center.
Regular 4" block with a 30 degree offset.
Gravel
Aggregate mix
Regular sized blocks used for most building jobs.
Quarry Products
Drainage stone-small smooth rounded stone
Regular 4" block with a 90 degree offset.
Bags
An empty small bag.
Plastering sand
Concrete block that weighs one tonne.
Clause 804