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.
Gravel
Clause 804
Blocks
Regular 4" block with a 90 degree offset.
The bigger thicker blocks up from the 4"
Aggregate mix
Bags
Small empty heavy duty sand bag.
Regular sized blocks used for most building jobs.
Concrete block that weighs one tonne.
Quarry Products
2" clean medium sized stone
Plastering sand
A tonne bag of sand.
Screenings-Very dusty gravel