1/2″ Chips, small stones, the next size up from 3/8″ chips. Suitable for driveways also. It is sold lose by the tonne.
Blocks
Quarry Products
Drainage stone-small smooth rounded stone
Regular 4" block with a 30 degree offset.
Chips
3/8" Chips. Very small stones
Regular 4" block with a 90 degree offset.
4" clean large stone
2" clean medium sized stone
The bigger thicker blocks up from the 4"
Bags
An empty small bag.
Plastering sand
Small empty heavy duty sand bag.