Rusted steel, oiled. Comes with a ground stake that has long prongs, allowing you to position it at ground level or a little higher so plants will grow through it. It can also be set at an angle, if required.
There are 4 sizes:
H55cm x W40cm x D27cm
Mini Spiral
With ground spike £210
Mounted on oak £230
Medium
H65 x W50 x D30
With ground spike £300
Large:
H80 x W60 x D38
With ground spike £450
X Large:
H100cm x W130 x D41
With ground spike £600
