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.
Gravel
Screenings-Very dusty gravel
Quarry Products
2" clean medium sized stone
Chips
The bigger thicker blocks up from the 4"
A tonne bag of sand.
Regular sized blocks used for most building jobs.
Bags
An empty big bag.