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
Regular sized blocks used for most building jobs.
Regular 4" block with a 30 degree offset.
Quarry Products
Plastering sand
Gravel
Aggregate mix
4" clean large stone
Drainage stone-small smooth rounded stone
Bags
An empty small bag.
Screenings-Very dusty gravel