microwaveable or freeze-able if put in freezer bag
From the mfg:
Comforting Dual Therapy: A perfect cuddle buddy that also heals, providing warm comfort or cooling relief for fevers and bumps.
Natural Care: No chemicals, just a cotton blend and a corn-based heating and cooling element, offering a natural and effective treatment for your little ones.
Hygienic & Long-lasting: Machine-washable for endless cuddles and care, making it a cost-effective and durable companion for your child.
Fun & Effective Healing: Cute zoo animal designs turn self-care into playtime, encouraging children to take care of their health willingly.
Trusted by Parents: Created for therapeutic effectiveness and durability, making it a go-to solution for parents who want a natural remedy toy for their children's aches and pains.