Review on 🔥 72-hour Uniheat Heat Pack: Ultimate cold weather protection for plants, live insects, reptiles, tropical fish & more! 5 PK by Kristen Wheeler

I was on vacation in KC and bought some plants to send home. I ordered them, packed all 5 in a box (one on each side and one at the bottom), carefully filled the box with my plants, and then shipped them same day via UPS within 2 days. When the package came home, I opened it and the flower pots were very cold! I don't feel the packs lasted the 72 hours they claim, but all my plants are alive (with some cold damage) so they did the job, at least partially. Be careful using these packs when the temperature is very low! They don't last that long.