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.
Quarry Products
2" clean medium sized stone
Chips
A tonne bag of sand.
Bags
Small empty heavy duty sand bag.
4" clean large stone
Gravel
Screenings-Very dusty gravel
Plastering sand
Regular 4" block with a 30 degree offset.