Drainage stone-small smooth rounded stone
Drainage stone are small smooth rounded stone used for draining water away from places where water is unwanted. It is sold lose by the tonne.
Blocks
A much bigger block with a cavity/hole going through the center.
Regular 4" block with a 30 degree offset.
Gravel
Aggregate mix
Regular 4" block with a 90 degree offset.
Concrete block that weighs one tonne.
Quarry Products
4" clean large stone
2" clean medium sized stone
Chips
3/8" Chips. Very small stones
Plastering sand