Based on the answers provided, here are the corrections needed for the 3D object:

1. Modify the shape of the object to resemble a ring. This means reducing the axial length relative to its diameter to create a circular band instead of a cylindrical tube.

2. Clearly mark the x-axis on the object to clarify the direction of extrusion. This will help in identifying whether the object is extruded along the x-axis or not.

3. Once the x-axis is marked, ensure that the object's extrusion is uniform along this axis. This might not require any changes if the object already has a uniform extrusion in its elongated direction, but it's important to confirm this once the x-axis is clearly marked.