Blocks
Concrete block that weighs one tonne.
Chips
A much bigger block with a cavity/hole going through the center.
Regular sized blocks used for most building jobs.
Bags
Small empty heavy duty sand bag.
3/8" Chips. Very small stones
Gravel
Aggregate mix
Quarry Products
2" clean medium sized stone
Regular 4" block with a 30 degree offset.
An empty big bag.