What is this blue blox arround my mesh?

I found out what all these other Boxes and Volumes are, but what is this blue box in the screenshot good for?
The Mesh is part of a blueprint which generates these wall dynamical in a Construction Script.

If this is the meshes colision box, then my next question would be how I can recalculate/reset it in a blueprint?
It shouldn’t be there…

75569-bluemesh.png

Those are the bounds of the objects. I dont remember what the yellow one was exactly but the blue one represents the visibility bounds of the mesh.
You can edit collision in static mesh editor.

Do you know why the visibility bounds are not covering the whole object?
The top part of the mesh is outside of the box.

Jacky had the correct answer. I close this thread.