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.
Chips
3/8" Chips. Very small stones
Gravel
Screenings-Very dusty gravel
Blocks
Regular sized blocks used for most building jobs.
The bigger thicker blocks up from the 4"
Quarry Products
Drainage stone-small smooth rounded stone
Regular 4" block with a 30 degree offset.
Bags
Small empty heavy duty sand bag.
Aggregate mix
Concrete block that weighs one tonne.
A much bigger block with a cavity/hole going through the center.