http://home.ccil.org/~treeman/camb/

Broad Belt-like material for staking trees. Trees do not move in the sense
as they run from danger. However, they constantly move in place. Camb
Guards respects that movement and allows the tree to sway without injuring
the cambium zone.

Sincerely,
John A. Keslick, Jr.
Arborist
http://home.ccil.org/~treeman
and www.treedictionary.com
Beware of so-called tree experts who do not understand tree biology.
Storms, fires, floods, earthquakes, and volcanic eruptions keep reminding us
that we are not the boss.