Nitori Super Insulated/Cooling Bottle N-HEATEX 500ml & 750ml Set

Nitori's Ultra Insulated/Cooling Bottles, 500ml and 750ml.
It seems they are no longer selling sizes other than 900ml.

I purchased the 500ml bottle from Nitori's online store in February of last year.
I bought the 750ml bottle after that.

I originally used a mont-bell insulated bottle for mountain climbing and intended to use these as backups, but they haven't been used at all, so I'm putting them up for sale.
Therefore, both are unused and new.

They have never been used outdoors. Of course, they haven't been used indoors either.
Although they are listed as new and unused, they have been stored in a dark place after opening the boxes, so I believe there might be some minor scuffs or dust.
They are almost new, but please consider them as used items.
The original boxes, bags, and instruction manuals are all included as shown in the photos.

Immediate purchases are welcome.
I will try to ship as quickly as possible, aiming to ship the day after your purchase.
Thank you.