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
Bags
An empty small bag.
Quarry Products
2" clean medium sized stone
Regular sized blocks used for most building jobs.
Concrete block that weighs one tonne.
Small empty heavy duty sand bag.
Drainage stone-small smooth rounded stone
Clause 804
An empty big bag.
Regular 4" block with a 30 degree offset.