Block dimensions:12″HIGH X 17″LONG X 4″THICK
Blocks
A much bigger block with a cavity/hole going through the center.
Concrete block that weighs one tonne.
Bags
Small empty heavy duty sand bag.
An empty small bag.
Chips
Gravel
Clause 804
An empty big bag.
Quarry Products
Drainage stone-small smooth rounded stone
4" clean large stone