Being soft, squishy, warm, and comfy, the K&H Microwavable Pet Bed Warmer is the only one of its kind. The K&H Microwavable Pet Bed Warmer is simple to use, just a few minutes in the microwave is all it takes. The non-toxic warmer is safe and stays warm for up to 12 hours inside a pet's bed. Simply microwave it as needed for anytime warmth for your pet. The K&H Microwavable Pet Bed Warmer is the perfect addition to a senior or arthritic pet’s bed by helping ease their joints.