Pentax Auto Extension Ring K Set - Operation Unconfirmed

PENTAX Auto Extension Ring K Set - Used 3-piece set of extension tubes.
Extension rings for K-mount.

As I do not own equipment to test its functionality, this item is listed as untested.

[Included Items]
All items shown in the first photo are included.

Pentax Auto Extension Ring K Set

[Condition]
This is a used item and shows some signs of use, such as minor scratches.

[Notes]
I have made every effort to describe the item accurately, but there may be oversights or inaccuracies.
The condition description is subjective. Please judge from the photos.
If you have any concerns, please ask before purchasing.

Please understand that this is a used item. Those looking for new or pristine items, or those concerned about minor details, should refrain from purchasing.

Thank you for your understanding and consideration before purchasing.

Immediate purchase is welcome.
Receipts will not be issued.