【Natural Cooling Effect】Thanks to the properties of the PCM material, it freezes naturally at 28 degrees Celsius, eliminating the need for a refrigerator and maintaining coolness for a long time. It can be used repeatedly, making it economical and an effective measure against the heat. 【Easy to Wear & Adjustable】It's easy to put on with a button and can be adjusted to fit the size of your pet's neck. Suitable for dogs and cats. 【Summer Essentials】An indispensable item for heatstroke prevention and heatstroke countermeasures. Enjoy a comfortable summer with your beloved dog during training, walks, and outings. 【Lightweight & Comfortable to Wear】Made with lightweight and cool materials that won't burden your pet's neck. Comfortable feeling lasts even after long hours of wear. 【No Water Droplets】Due to the material's properties, it's unlikely to condense on the outside of the packaging after melting, so you don't have to worry about getting your pet's fur wet. Size is S. Opened for photography, but it's new and unused ✨ Thank you for viewing! ♡ ❤ Many new and unused items, free shipping ❤ Immediate purchase is welcome ♡ ❤ We also handle many items that are "Only one in stock! First come, first served" (*^^*) Please take a look at other recommended products from the following if you like(^^) ↓↓↓ #nana♡store