Yellow steel or stainless?+
Yellow where being seen matters: yards, service lanes, anywhere a driver needs to notice the post before reversing into it. Stainless where the bollard sits in front of customers and the finish is part of the frontage. Stainless also stops the annual repaint.
What does the ground sleeve need?+
A core drill into sound concrete, and a thought about where water goes once the sleeve fills. That is the part people forget. Send a photo of the surface and we will tell you whether the location suits a sleeve or whether a fixed bollard makes more sense.
Removable or fixed?+
Fixed unless something legitimately needs to drive through. Removable costs more, needs the sleeve set into the surface, and adds a maintenance item. If access is genuinely needed only once or twice a year, a fixed bollard with a planned removal is often cheaper over the life of the site.
How is it secured?+
A padlock through the sleeve collar holds the bollard down. Release the lock and it lifts out by hand, leaving the sleeve flush with the surface. Keep the cap in place when the bollard is out, or the sleeve fills with grit.
Will it stop a truck?+
No, and be careful with anyone who says otherwise about a removable post. These are protective and deterrent products for the applications described here. They are not crash-rated. If your project requires certified anti-ram performance to ASTM F2656 or IWA 14-1, we will say so and refer you to a rated manufacturer.