TrafficGuard, IncTwist-In Vehicle Barrier System for Easy Traffic Control TrafficGuard, Inc provides twist-in posts ranging from lightweight and easily transportable 30 lbs. to durable 70 lb. varieties. Whether you need a traffic bollard for only special occasions and need it to be easily transportable or will leave it in place a majority of the time and want a sturdy product, we have a twist-in variety for you. This heavy duty road bollard for sale is removable to let emergency vehicles pass through or can be utilized only on certain occasions for extra traffic control. The twist-in design makes it simple to install and remove the traffic bollard depending on your needs, and they are durable, high quality products when in place. Quickly install and remove the traffic barrier post and leave behind a flush mount when bollard is not in use. 36 inch Round Post Twist-In bollard models. The Round Post Twist-In RPT 3501F/RPT 3501 has a 30 pound bollard post weight with a 3.5 inch OD and a .216 inch pipe. The Round Post Twist-In RPT 4501 has a 40 pound bollard post weight with a 4.5 inch OD and a .237 inch pipe. The Round Post Twist-In RPT 6601 is the heaviest with a 70 pound bollard post weight and has a 6.625 inch OD and a .280 inch wall. *TrafficGuard, Inc complies with the Buy American Act (41 U.S.C 8302-8305)Benefits:All TrafficGuard, Inc products feature heavy duty steel construction36″ tall 4.5″ OD, 0.237″ pipePost weight 40 lbs.Galvanized ground sleeveGalvanized ground sleeve filler pieceFlush mount when post removedAll surfaces are primed with rust & corrosion resistant, zinc rich primer w/5,000 hour salt spray performanceStandard finish, TGIC polyester outdoor finish RAL1028 yellow