Regular 4″ block with a 90 degree offset.
Regular 4″ block with a 90 degree offset. Can be bought individually or as a bale of 30.
Blocks
A much bigger block with a cavity/hole going through the center.
Quarry Products
2" clean medium sized stone
Concrete block that weighs one tonne.
The bigger thicker blocks up from the 4"
Gravel
Screenings-Very dusty gravel
Drainage stone-small smooth rounded stone
Bags
Small empty heavy duty sand bag.
Regular 4" block with a 30 degree offset.
4" clean large stone