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Add hot liquid to reveal your design as the black mug turns white.
Sale Price $21.29.  
Original Price $23.65 Comp. value
per mug
You save 10%

Phi number Mug

4.8 out of 5 stars rating
22194 Total Reviews |
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Style: Color Morphing Mug

It looks like a plain black mug, but add some coffee and – magic – your funny design, cool pattern, or special photo is revealed. This mug turns heads. It is made with a special, heat-sensitive coating, so, when any hot liquid is added, it changes color to reveal your design against a bright, white background. It may seem simple, but, trust us, a morphing mug never fails to surprise and delight.

  • Available in 11-ounce or 15-ounce
  • Dimensions:
    • 11-ounce: 3.2” D x 3.8” H
    • 15-ounce: 3.4” D x 4.5” H
  • Strong, ceramic construction
  • Hand wash recommended; microwave and dishwasher are not recommended due to the special, heat-sensitive coating that gives this mug its magic
  • Meets FDA requirements for food and beverage safety
  • Printed on demand in Reno, NV

About This Design

Add hot liquid to reveal your design as the black mug turns white.
Phi number Mug

Phi number Mug

New design for math lover
Lshirt
Artwork designed by
Sidoarjo, jawa timur, Indonesia
View their Store

Customer Reviews

4.8 out of 5 stars rating22.2K Total Reviews
19557 total 5-star reviews1853 total 4-star reviews344 total 3-star reviews157 total 2-star reviews283 total 1-star reviews
22,194 Reviews
Reviews for similar products
5.0 out of 5 stars rating
5 out of 5 stars rating
By AnonymousJanuary 9, 2025 • Verified Purchase
Classic Mug, 15 oz
The black cat in the window mug is magical. I didn’t know what a morphing mug was when I got it. When hot the cat appears and cold it looks like a plain black mug. .
5.0 out of 5 stars rating
5 out of 5 stars rating
By Colby T.August 8, 2024 • Verified Purchase
Color Morphing Mug, 11 oz
Creator Review
dog lover heaven with customized style... love it. Great quality. This mug has the magic turning of all black until liquids added, which didn't realize when ordering. the printing turned out great, good photo status
5.0 out of 5 stars rating
5 out of 5 stars rating
By Brandy S.July 3, 2024 • Verified Purchase
Color Morphing Mug, 11 oz
I love the way this turned out. Integrating my photos along with the beautiful background on the calendar itself is just awesome. The print is beautiful on the photos.And I love the glossy Cover.

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mathmath loverphinumber of phi
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mathmath loverphinumber of phi

Other Info

Product ID: 256181421476315022
Created on: 12/23/2024, 10:04 PM
Rating: G 
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