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
Bags
Small empty heavy duty sand bag.
Chips
Regular 4" block with a 90 degree offset.
3/8" Chips. Very small stones
Quarry Products
A tonne bag of sand.
Gravel
Screenings-Very dusty gravel
Concrete block that weighs one tonne.
Aggregate mix
Plastering sand