Previously used in diving for a quick warm up after a cold UK dive - a tub full of hot packs. You click the metal tab inside and a chemical reaction sets the thermic reaction off.
To reset just boil in a pan of water for a while until liquid is clear again.
Could also be used if you have aches and pains as a hot compress.
Having a clear out of Dive gear so check my other posts
Hot Packs + tub (Utley BD20)
Collection Times
Any time - by prior arrangement
Any time - by prior arrangement
This offer has been gifted to someone and is no longer available.