An empty small bag.
An empty small bag which can be filled with 4 stone weight of sand, gravel or chips. Bought on its own as an empty bag.
Bags
An empty big bag.
Blocks
The bigger thicker blocks up from the 4"
Concrete block that weighs one tonne.
Quarry Products
A tonne bag of sand.
Regular 4" block with a 90 degree offset.
Chips
Gravel
Aggregate mix
4" clean large stone
A much bigger block with a cavity/hole going through the center.