A tonne bag of sand.
A tonne bag of sand made up in store and ready to be collected.
Blocks
Regular 4" block with a 90 degree offset.
Regular 4" block with a 30 degree offset.
Bags
An empty small bag.
Gravel
Aggregate mix
An empty big bag.
Concrete block that weighs one tonne.
Quarry Products
4" clean large stone
2" clean medium sized stone
Drainage stone-small smooth rounded stone
Clause 804