Small empty heavy duty sand bag.
Small empty heavy duty sand bag (GREEN) 4FT LONG X 1FT WIDE.
Blocks
The bigger thicker blocks up from the 4"
Quarry Products
A tonne bag of sand.
Regular 4" block with a 30 degree offset.
Drainage stone-small smooth rounded stone
Regular 4" block with a 90 degree offset.
Bags
An empty small bag.
Chips
Gravel
Clause 804
Concrete block that weighs one tonne.