A tonne bag of sand.
A tonne bag of sand made up in store and ready to be collected.
Blocks
A much bigger block with a cavity/hole going through the center.
The bigger thicker blocks up from the 4"
Chips
3/8" Chips. Very small stones
Regular 4" block with a 90 degree offset.
Bags
An empty big bag.
Regular sized blocks used for most building jobs.
Quarry Products
4" clean large stone
An empty small bag.