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.
Gravel
Clause 804
Quarry Products
Drainage stone-small smooth rounded stone
Blocks
Regular 4" block with a 90 degree offset.
Chips
3/8" Chips. Very small stones
The bigger thicker blocks up from the 4"
Regular sized blocks used for most building jobs.
Bags
An empty small bag.
2" clean medium sized stone
Concrete block that weighs one tonne.