Say "I solemnly swear that I am up to no good" to make the Maurauders Map appear by applying heat, by breathing.Color changing Maurauders Map Mask. Inner layer is made of moisture wicking fabric. The mask is light and comfortable to wear. 3 layers of protection. Hand wash & hand dry only. These masks guarantee the Maurauders Map logo. Made with non-toxic paint & safe to wear.
Mask change from black to reveal the Maurauder's Map at 89°F (32 °C) Color of mask may have changed due to shipping. Put in cooler temperatures to change it back to black.
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