Dog Cooling Goods Heatstroke Prevention Cool Neck Cool Bandana Small Dog Medium Dog Large Dog Cool Down Cool Ice Pack Stylish Cute SUZUKOUBOU2025 Cool Tube COOLTECH Series [Comes with safe-to-lick ice pack] Only tried it on once. The bag containing the large ice pack and instructions is unopened. Color: Light gray Size: M size (9.5cm long, 19cm wide when laid flat, 35cm in diameter. Elastic is included, so it can be used for dogs with a neck circumference of 40cm or more) It was too big for my dog (Mameshiba♂, 7kg), so I'm selling it to someone who can use it. Thank you for your consideration.