Buddie hand warmer small

I’ve found a pair of Buddie hand warmers on E bay
Purchased them very cheap and was interested in rebuilding
Them now  I haven’t seen these before on  any web pages and find out that the catylis heads are made
Asbestos now these are  pretty old warmers but for the size of them it would last about five or six or should iijust throw them away the whole  Handwarmer any ideas  maybe someone wants to have them to rebuild  I be glad to  to ship them on
Free of charge as a donation or experimentation  to see what you can make of them just  tell me were to Send them

Asbestos will not work as a catalyst, they may be asbestos sleeves to hold the catalyst like I've seen on some Peacock. You can throw it away and pack a catalyst spring into the head instead.