Technical info:

These are examples of the painted 4cm/1,6" sides.

No frame needed, so fits in any style room/office/space etc. From classic to modern.

 

This is an example of the aluminium stretcher bar backside. High quality linen on aluminium 'anti-skew' stretcher bars. A steel cable is already attached on this version.

 

When the description says 'canvas on wooden stretcher bars', there is only wood in it. These versions are always smaller sizes and not affected by skewing etc.