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
2" clean medium sized stone
Bags
Small empty heavy duty sand bag.
Plastering sand
An empty small bag.
Blocks
Aggregate mix
Chips
3/8" Chips. Very small stones
An empty big bag.
The bigger thicker blocks up from the 4"
Regular 4" block with a 30 degree offset.