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.
Blocks
The bigger thicker blocks up from the 4"
Bags
An empty big bag.
Regular sized blocks used for most building jobs.
Quarry Products
2" clean medium sized stone
Regular 4" block with a 90 degree offset.
Small empty heavy duty sand bag.
Regular 4" block with a 30 degree offset.
Concrete block that weighs one tonne.
Gravel
Aggregate mix