Drainage stone-small smooth rounded stone
Drainage stone are small smooth rounded stone used for draining water away from places where water is unwanted. It is sold lose by the tonne.
The bigger thicker blocks up from the 4"
Regular 4" block with a 30 degree offset.
A tonne bag of sand.
A much bigger block with a cavity/hole going through the center.
Small empty heavy duty sand bag.
Concrete block that weighs one tonne.
2" clean medium sized stone