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.
Quarry Products
Plastering sand
2" clean medium sized stone
4" clean large stone
Bags
An empty small bag.
Chips
An empty big bag.
Blocks
Regular 4" block with a 30 degree offset.
Concrete block that weighs one tonne.
Regular 4" block with a 90 degree offset.