Neck cooler that cools to -3°C, individually packaged, perfect for heatstroke prevention. - Type: Neck cooler - Size: 46 cm - Temperature: Cools to -3°C Thank you for viewing. It's long enough to hang around your neck, making you comfortable during exercise or after a bath! You can store it, so you can use it in the peak of summer without using it until then! You can change the quantity as needed, such as just one bag, or all three bags!