Blocks
A much bigger block with a cavity/hole going through the center.
Bags
Small empty heavy duty sand bag.
Gravel
Clause 804
Aggregate mix
Quarry Products
2" clean medium sized stone
Screenings-Very dusty gravel
The bigger thicker blocks up from the 4"
Regular 4" block with a 30 degree offset.
An empty small bag.
Drainage stone-small smooth rounded stone
A tonne bag of sand.