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.
Blocks
A much bigger block with a cavity/hole going through the center.
Quarry Products
Drainage stone-small smooth rounded stone
Plastering sand
Gravel
Screenings-Very dusty gravel
2" clean medium sized stone
Regular 4" block with a 30 degree offset.
A tonne bag of sand.
Aggregate mix
Concrete block that weighs one tonne.