Engineer ing designed, Manually-operated,lever-actuated, spring-loaded access barrier.(no counter-weight).• For sturdier casing and stronger resistance toweathering, the housing is made of acryliccoated Ga.14, G.I. sheet with dual epoxyprimer coats for extra protection (gray &zinc chromate).• The boom is made of powder-coated tubularaluminum bar and has reflective decals forincreased visibility.• The barrier is operated by its stainless steelhand lever f itted with a rubber grip.• The boom stops at approximately 75 degrees(raised position), and horizontally for theclosed position.• A lock is provided in the boom hub and canbe locked at the raised position wheneverdesired. But for added safety, the boomremains in the raised position even ifunlocked.• The light force required to operate thebarrier is uniform at any angle, unlike theconventional counter-weight type of barrier.• The main cover has a lock and key toprevent tampering.AVAILABLE with 3, 4, or 5 meter boom