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
The bigger thicker blocks up from the 4"
Quarry Products
Plastering sand
Regular 4" block with a 90 degree offset.
4" clean large stone
Gravel
Clause 804
Screenings-Very dusty gravel
Chips
2" clean medium sized stone
Bags
An empty small bag.