Reusable handwarmers that get hot by freezing

cfabbro
2021-02-03T02:25:08Z

Link URL: https://www.youtube.com/watch?v=Oj0plwm_NMs

Comments URL: https://tildes.net/~science/uyx/reusable_handwarmers_that_get_hot_by_freezing

Votes: 8

Comments: 0