We guarantee to provide you with quality products and service, and you can buy with confidence Pull up to automatically lock. Exquisite craftsmanship, uniform color, delicate and beautiful, enhance rust resistance Bollards height: 33cm; length: 60cm/70cm/80cm; pipe diameter: 6cm The U-shaped bollard is made of cold rolled steel. Sturdy and practical. Comes with reflective, high reflective performance Warning bollards serve as barriers between roads, buildings, and parking spaces, alerting motor vehicles to their presence. Parking bollards, telescopic parking bollards, parking barrier posts with detachable bases, warning bollards.