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.
Bags
An empty big bag.
Chips
3/8" Chips. Very small stones
Blocks
A much bigger block with a cavity/hole going through the center.
The bigger thicker blocks up from the 4"
Regular 4" block with a 30 degree offset.
Quarry Products
4" clean large stone
Drainage stone-small smooth rounded stone
Concrete block that weighs one tonne.
Plastering sand
A tonne bag of sand.