Just snap the metal disc to start an exothermic reaction creating heat in under 5 seconds & Reuse 100's of times!
A**I
Not Impressed!
Very hard to get them soft again when after the first use. Had boiled them like instructed, but they go from soft to hard again!
J**A
Five Stars
item came just as described and worked just as they are suppose to.
Trustpilot
2 days ago
5 days ago
