Relax and relieve shoulder and neck tension with the "Hot Neck Stretcher"

A perfectly sized hot water bottle that warms your shoulders and neck.
This product not only warms your shoulders and neck but also naturally stretches your neck by utilizing the weight of your head just by lying down. The special shape of the container is designed to fit your neck and applies pressure to the base of your neck.
To use, simply create hot water at 55°C, pour it into the container, and place it in the included cover. The specific temperature of 55°C is to prevent low-temperature burns. You can create water at approximately 55°C by mixing equal parts boiling water and water in a pot that holds 1.5L or more.
When actually using it, it feels good as your neck naturally stretches just by lying down. The 55°C temperature is also just right, making you feel like you could fall asleep. The protrusions on both ends of the special container firmly press against the base of your neck, providing a massage effect that exceeds expectations.

However, overuse can strain your body, so be careful to limit usage to a maximum of 10 minutes per day.

While adjusting the temperature is a bit of a hassle, it can relieve daily fatigue in a short amount of time, making it a recommended item for those suffering from stiff shoulders.