Core Micro Beads
A microwaveable moist heat pack that absorbed moisture from the air and releases it when heated. Packs can be warmed in a microwave to desired temperature and will remain warm for 20-30 minutes. The beads are natural and an effective method to help treat muscular aches and pains, arthritis, fibromyalgia, cramping, headaches, etc. Features:
Spot clean with a mild detergent. The covers cannot be removed.
This looked like a good heat therapy for the back, but it came much smaller than I hoped for. It also doesn't hold heat very well.