MATHMOS Tumbler Phase

MATHMOS Tumbler Phase
Made in UK by Mathmos

Purchased about 20 years ago and stored in a box for at least 15 years.
When I tested it for this listing, the rubber on the charging port had undergone hydrolysis and hardened, so I tore it off with my finger. The function appears to work without issue.

It is rechargeable with a built-in battery that lasts 6-8 hours on a full 14-hour charge.
I confirmed it works; it seems to end with a red flashing light (I confirmed the flashing state after more than 10 hours).
It also operates when connected via cable.

As the company has withdrawn from Japan, there are no distributors, so I believe this is a rare item that is difficult to obtain.

I have cleaned and tested it before listing, but it is a used item stored at home.

No claims, no returns. Please consider only if you understand this.

Thank you for looking.

Mathmos Tumbler Phase, UK made.
This is a Mathmos Tumbler from the UK, with 9 color changes and lighting that changes flashing speed depending on the surface it's placed on.
The time it takes to change colors subtly varies depending on how it's placed.

Includes original AC adapter.
Material: Glass & Plastic
Specifications: Width 18.5 x Depth 9.9 x Height 5.9 cm