Bags
Small empty heavy duty sand bag.
Chips
Blocks
A much bigger block with a cavity/hole going through the center.
Quarry Products
2" clean medium sized stone
Concrete block that weighs one tonne.
Drainage stone-small smooth rounded stone
Plastering sand
Regular 4" block with a 90 degree offset.
Gravel
Clause 804
4" clean large stone
Regular 4" block with a 30 degree offset.