For lane widths greater 3.5m, either a pendulum support or a support post is required. The pendulum support PS01 with a built-in suspension mechanism, is designed to cushion the barrier boom when closing and supports the boom in the horizontal position. The height of the pendulum support is continuously adjustable and may be therefore optimally adjusted to uneven driving surfaces or different installation heights of the barrier and the support post. The pendulum support PS01 is available for all Magnetic. Access and Magnetic.Parking barriers.