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.
Quarry Products
4" clean large stone
Blocks
Concrete block that weighs one tonne.
Regular 4" block with a 30 degree offset.
Plastering sand
Regular 4" block with a 90 degree offset.
The bigger thicker blocks up from the 4"
Bags
An empty small bag.
An empty big bag.
A tonne bag of sand.
Drainage stone-small smooth rounded stone
Regular sized blocks used for most building jobs.