On Sun, 15 Sep 2013 16:01:12 +0100, Broadback
wrote:

Saw an advert for one, in effect it is a like a spring coiled, very
short when not in use exceptionally long when in use. Has anyone here
experience of them, and do they stay short for a long time or do they
gradually stretch, also do they stay efficient?

I considered on once but my worry is that it would work in a straight
line but not round corners of beds and so would spring across plants
and damage them.

Pam in Bristol