ALEKO® SBL-RM1 Steel Removable Safety Round Post Bollard is 4-1/4 inch (10.8 cm) diameter 35 inch (88.9 cm) height steel removable round bollard post with reflective stripes by optional. The removable bollard is usually used in entrance or exit of convenient store or supermarket. It consists of base and body. When the body takes away, the vehicles can easily go over the base, so you have a most flexible choice to control the traffic with it or remove it at any time by unlocked with the key. Terrific value and fast shipping!