An empty big bag.
An empty big bag which can hold a tonne of sand, gravel or chips. Bought on its own as an empty bag.
Gravel
Aggregate mix
Blocks
A much bigger block with a cavity/hole going through the center.
Clause 804
Chips
Concrete block that weighs one tonne.
Quarry Products
Drainage stone-small smooth rounded stone
3/8" Chips. Very small stones
Bags
Small empty heavy duty sand bag.
Regular 4" block with a 90 degree offset.
4" clean large stone