Spring Ring?

[Alice]

Hi all
I'm looking for a material known as Spring Ring, used to make cyindrical containers for propagating and growing trees above ground. Tried searching without much luck, does anyone know where I can source a qunatity of this stuff?

[Bin J]

Hi there . . .

This is what I found: http://www.ronnebytrees.com.au/index.html
These are the guys that make them - maybe give them a ring / email?