Been using Novaalab pads since 2017 to replace my thermo heating pads for massage session. I have my affiliate link attached to this image, just click to get more info and purchase what you like. They are worth it. My pads lasted over 3 years and I use them more than you will. (4 sessions a day, x 4 days a week and multiple 20min sessions) These are what keep me functioning... as a therapist. They help the mitochondria function better to heal the body.