Name: Ice circle Cold circle physical cooling in summer Color: L Light blue,L cloisonne,L Sky Blue,L Blue and White combination,L Black,L White,M light blue,M light M Flower,M light color,M White Pony,M M Cat,M M white,M lilac Grey Product size: L Inner diameter: about 11.8cm/4.7in Width: about 2.1cm/0.8in Inner circumference: about 36cm/14.17in M Inner diameter: about 11.3cm/4.5in width: about 2.1cm/0.8in Inner circumference: about 36cm/14.17in S Inner diameter: about 10.5cm/4.2in width: about 2cm/0.8in Inner circumference: about 33cm/13in Product weight: Individual weight about 110-150g Applicable to: groups Features: 1. Cooling comfort: The ice circle for adults can quickly reduce the temperature around the neck and head through the cold gel or ice pack inside, bringing a cool and comfortable feeling and relieving the discomfort brought by hot weather. 2. Relieve fatigue: In hot weather, wearing adult ice rings can effectively relieve neck fatigue and muscle soreness, help relax muscles, reduce stress, and improve comfort and physical comfort. 3. Application scenario: Adult ice is suitable for outdoor activities, sports, travel, office and other places, especially suitable for wearing in hot summer, to help the body keep cool and comfortable. 4. Reusable: Adult ice rings can generally be reused, just put them in the refrigerator or freezer for refrigeration, and enjoy a continuous cooling effect when worn again. 5. Regulate body temperature: Properly wearing adult ice rings helps regulate body temperature, prevent heat stroke and overheating, and keep the body healthy and comfortable. Note for use: The first time you receive advice, wash and dry, and put it on the top of the refrigerator for 1 hour to activate it. It solidifies below 28 degrees, so you don't need to put it in the fridge. Put the conditioned room before going to bed can solidify the next morning, wear it to go out in the morning, and wear it to go home at night. Refrigerate (-12 to -18°C) for about 10 minutes: Refrigerate (0-5°C) for about 30-60 minutes: conditioned room (20-25°C) about 2-4 hours: Room temperature (below 28°C) about 4-6 hours; The temperature of the ice circle does not need to worry about freezing the neck. The pcm liquid inside is set in advance to maintain the temperature of 26-28 degrees after freezing, which is the most suitable temperature for wearing the neck for a long time after many experiments. Because the body temperature of the neck is lower than that of other parts of us, this temperature can give the neck the most comfortable cooling feeling, and if the temperature is lower, it will affect the health of the neck. The ice is maintained at a constant temperature, so it can be used by children at ease, without night sweats or freezing the neck. If you want more ice? It can be placed on the top of the refrigerator or in ice water before use, but it is not recommended to let the neck cold for a long time.