☆ No batteries or power supply needed! ☆ Reusable eco-friendly hand warmer. ☆ The principle utilizes the impact of the internal liquid, and it's characterized by heating up immediately when you press the metal button inside. ☆ Comes with a stylish muffler-type cover to warm your neck. ● When you click and bend the built-in metal button, the liquid inside crystallizes (solidifies) and generates heat. ● Heats up to about 50°C in about 10 seconds. ● Just set it in the included muffler. The moderate temperature lasts for about 60 minutes. ● The cover can be washed when it gets dirty, so you can always keep it clean. ● When it cools down completely, it can be reused by boiling it for about 5 minutes. ● Can be used repeatedly about 300 times. ● For various scenes such as jogging, walking, commuting to school, outdoor activities, and working in cold places! ● Lightweight at about 220g, it doesn't strain your neck and has a shape that doesn't easily slip. 【Set Contents】 Main body, muffler-type cover ※ Never heat in a microwave. ※ Do not use during bathing or sleeping. [Size Information] Size Width Depth Inner Diameter Free 142.5cm 10 ※ The color will be the one listed in the product name. ※ Selling at a loss to get rid of it, so it's a bargain price and I won't lower the price any further. Please purchase as is after referring to my profile! I will delete it when I relist it even if you like it, so please follow me. #Winter #Warm #ColdProtection #Muffler #WarmGoods