Natural freeze at 39°F (18°C) and below NASA Developed PCM Material: This cool ring uses TPU material and a new cooling material (PCM) developed by NASA, and it naturally freeze at less than 39.4°F (18°C). PCM material is said to maintain a constant temperature by absorbing and dissipating heat. It is gentle and cool as ice; it is easy to use, so you can use it indoors or in your car without worrying about cold disabilities, and it is gentle on your skin, so it is perfect for heatstroke prevention
Cool Neck Ring, COSMOS Certified, Fluorescent Design, Unisex, Cool Neck with COSMOS, RoHs, and REACH certification. This product is very safe. Use with confidence. New in 2023! Fluorescent design! It glows in the dark, so it is recommended to wear at night roads or during summer festivals. The design is also well-designed; It can be used for a variety of occasions such as commuting to work or school, watching sports, jogging, fishing, cycling, camping, driving, sporting events, housework, golf, and even under the blazing sun
(Cool Ring Double Layer Construction, Keeps Cool for 250 Minutes & Comfortable Wear) Double-layer tube design neck band lasts up to 2 times the duration of a 2 layer tube, making it more cooler. The last time has been extended to 250 minutes. Heat Stroke Prevention Neck Cooler makes it easy to keep you cool and comfortable at all times. It is also lightweight and does not put strain on your neck. This cool ring is easy to use by both children and adults
(Invigorating Ring, Reusable, No Condensation) Once melted, just leave it in a cool space with air conditioner and you can refreeze it again and again. Can be used repeatedly, so it is both natural and economical. Depending on the temperature environment, this product absorbs heat and dissipates heat while repeatedly freezing and melting. The cool ring is treated to prevent condensation and prevents condensation. Never worry about getting your neck or clothes wet
【Youtuba Neck Cooler, Easy to Use & Best Gift】Use refrigerator, ice water, etc., to cool and freeze. Cooling time is about 25 minutes to cool in the refrigerator. Ice water cooling time → about 8 minutes The cooling reaction will be reduced if the temperature of warm water in the summer, so please expose it to ice water below 20°F (10°C). This product is especially popular among various ice neck rings such as freezing belts and cooling tubes. Everyone will love it as a gift for family and friends with this summer cooling gear