R-BOOM Neck Cooler, M size, naturally cools at 28°C. - Brand: R-BOOM - Product Name: Neck Cooler (Model No.: NC-M41LC) - Size: M (Inner diameter: approx. 13 x 11cm (inner circumference approx. 35cm)) - Color: Lilac - Material: Exterior - TPU, Contents - PCM - Weight: Approx. 135±10g - Seller: RF Trade Co., Ltd. - Temperature Regulation: Naturally cools at 28°C - Cooling Duration: Approx. 60 minutes based on an ambient temperature of 28-36°C How to Use ① This product solidifies naturally like ice in an environment below 28°C. (It can be used when solidified.) Cooling with running water or refrigerating/freezing will speed up the solidification time. ② Once it starts to soften, it can be used again by solidifying it in an environment below 28°C. Solidification with running water or in a cool room is recommended when you are out and about. Precautions for Use ● Do not use for purposes other than its intended use. ● Do not place near high temperatures or fire. ● If the surface gets dirty, wash it with water. ● Do not eat or put the contents in your mouth. ● Keep out of reach of small children. ● In the event of a rupture and leakage of contents, discontinue use immediately. ● If the contents get on your hands, wash them off with water. If any abnormalities occur, consult a doctor. ● The shape may deform due to repeated freezing and melting, but this does not affect its use. ● When storing, store it in a flat place as much as possible to prevent the contents from shifting. ● Due to the nature of the product, a white powder-like substance may adhere after repeated use, but this does not affect its use. ● When disposing of the product, follow the disposal guidelines of your local municipality. Thank you for viewing.