A much bigger block with a cavity/hole going through the center.
They are a much bigger block than the 4″ and 6″ blocks with a cavity/hole going through the center of the block. Sold in bales of 20 or by single blocks on their own.
Blocks
The bigger thicker blocks up from the 4"
Gravel
Screenings-Very dusty gravel
Quarry Products
4" clean large stone
Clause 804
Drainage stone-small smooth rounded stone
Bags
Small empty heavy duty sand bag.
Regular 4" block with a 30 degree offset.
2" clean medium sized stone
An empty small bag.
A tonne bag of sand.
Concrete block that weighs one tonne.