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
Regular 4" block with a 30 degree offset.
Quarry Products
A tonne bag of sand.
Gravel
Screenings-Very dusty gravel
4" clean large stone
Bags
Small empty heavy duty sand bag.
Drainage stone-small smooth rounded stone
An empty big bag.
Plastering sand
Clause 804
An empty small bag.