Economic. Just fill the stone into the gabions and seal it.
Simple installation. No special technology needed.
Weather proof under natural destroy, corrosion resistant.
No collapse even under big scope of deforming.
Sludge in the stones is good for plant growing. Mixed to form a integrity with the natural environment.
Good permeation can prevent the damage by hydrostatic.
Less transport freight. It can be folded together for transport and further installation.