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
Regular 4" block with a 30 degree offset.
Regular sized blocks used for most building jobs.
Chips
3/8" Chips. Very small stones
Quarry Products
Plastering sand
Concrete block that weighs one tonne.
A tonne bag of sand.
Gravel
Clause 804
Screenings-Very dusty gravel