Small empty heavy duty sand bag.
Small empty heavy duty sand bag (GREEN) 4FT LONG X 1FT WIDE.
2" clean medium sized stone
3/8" Chips. Very small stones
A much bigger block with a cavity/hole going through the center.
Regular 4" block with a 90 degree offset.
An empty small bag.
Drainage stone-small smooth rounded stone
An empty big bag.