Dog cooling goods, heatstroke prevention, cool neck, cool bandana, small dogs, medium dogs, large dogs, cooling, chilling, ice pack, stylish, cute, SUZUKOUBOU2025 Cool Tube COOLTECH Series [Includes safe-to-lick ice pack] Only tried on once. The bag containing the ice pack (large) and instructions is unopened. Color: Light gray Size: M size (Length 9.5 cm, flat width 19 cm, diameter approximately 35 cm. It has elastic, so it can be used for dogs with a neck circumference of 40 cm or more.) It was too big for my dog (male Mame Shiba, 7 kg), so I am giving it to someone who can use it. Thank you for considering.