Chips
3/8" Chips. Very small stones
Quarry Products
2" clean medium sized stone
A tonne bag of sand.
Gravel
Aggregate mix
Blocks
Bags
An empty small bag.
Concrete block that weighs one tonne.
A much bigger block with a cavity/hole going through the center.
Regular 4" block with a 90 degree offset.
An empty big bag.