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
Gravel
Aggregate mix
Regular 4" block with a 90 degree offset.
Quarry Products
A tonne bag of sand.
Plastering sand
Chips
Clause 804
The bigger thicker blocks up from the 4"
Bags
An empty small bag.