Regular 4″ block with a 30 degree offset.
Regular 4″ block with a 30 degree offset. Used especially for bay windows. Can be bought individually or as a bale of 30.
Drainage stone-small smooth rounded stone
Small empty heavy duty sand bag.
A tonne bag of sand.
Regular 4" block with a 90 degree offset.
Concrete block that weighs one tonne.
The bigger thicker blocks up from the 4"
An empty small bag.
4" clean large stone
An empty big bag.