Barrier supplied with butt, spring and two isobar insulators.
Big butt for a better insulation, with reinforced mechanism.
Flexible spring up to 5 mt., 25 cm ease length, treated against oxidation; with this spring the barrier opens and closet immediately without any effort, well visible from distance if it is correctly closed.
Special insulators with 2 connected conductor rings, usable as connection point at both sides of the barrier.
Usable with electric treads and cords.