Concrete block that weighs one tonne.
Concrete block that weighs one tonne with many heavy duty uses.
Bags
Small empty heavy duty sand bag.
Blocks
A much bigger block with a cavity/hole going through the center.
An empty big bag.
Regular 4" block with a 30 degree offset.
Gravel
Aggregate mix
The bigger thicker blocks up from the 4"
Quarry Products
Drainage stone-small smooth rounded stone
Regular sized blocks used for most building jobs.
Plastering sand