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
Plastering sand
Blocks
The bigger thicker blocks up from the 4"
Chips
Gravel
Clause 804
Drainage stone-small smooth rounded stone
Concrete block that weighs one tonne.
Regular 4" block with a 90 degree offset.
Bags
Small empty heavy duty sand bag.
An empty small bag.
A tonne bag of sand.