Dual line system provides maximum control for added safety and security the second line of webbing helps to keep control of a queue by preventing people from ducking under the webbing 4 way connectivity for extra versatility 23 metres of webbing belt per post anti tamper lockingtape as standard stops accidental release of tape patented centrifugal braking system prevents belt retracting at excessive speed coloured units are quality mild steel posts and low profile base post 975mm high