I was supposed to be learning about solubility and blah blah blah... But this morning in chemistry my handwarmer game was enhanced. These bad boys are reusable and have a fairly thick plastic pouch. The heat lasted my entire 3 hours in class. They will come in handy for sure.
https://www.amazon.com/s?k=hot+snap...QQ&sprefix=hot+sea,aps,147&ref=nb_sb_ss_i_1_7
https://www.amazon.com/s?k=hot+snap...QQ&sprefix=hot+sea,aps,147&ref=nb_sb_ss_i_1_7