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.
Bags
An empty small bag.
Blocks
Regular sized blocks used for most building jobs.
Regular 4" block with a 30 degree offset.
Gravel
Aggregate mix
Quarry Products
4" clean large stone
Regular 4" block with a 90 degree offset.
Small empty heavy duty sand bag.
An empty big bag.
A tonne bag of sand.