Triumilynn Cooling Dog Collar, Dog Cooling Collar with Removable Gel Pack, Summer Chill Out Pet Cooling Collar Fits Dogs Cats Neck 13.4 to 15.7 Inches, Blue

Not worth the money. After freezing it in the freezer, it was nothing but warm water by the time we drove 20 minutes to get to the park. Nonetheless, it sat in the car while we walked.

way to small