Extension Tube for Canon EF Mount

This is a Viltrox Extension Tube for Canon EF mount.
It is a full set with electronic contacts, including 12mm, 20mm, and 36mm tubes.
It has been used very little, so I believe it is in good condition.
I usually keep front and rear caps on, but I will be using the caps for other purposes, so they are not included.
Only the main unit is included.

The retail price is close to 7000 yen, so I think this is a good deal.

There is a possibility that I may change the shipping method to YuYu Mercari便. Thank you for your understanding.