Features:The material of ice neck cooler is reliable and quality, ensuring safety to the body, allowing you to stay cool while staying safe.You can wear the ice neck cooler when working outdoors, cycling, exercising, doing yoga, exercising, participating in outdoor concerts and other activities.Specifications:Main material: mixture of ice crystalsSize: approx. 18 cm/ 7.1 inchesPackage includes:3 x Wearable cooling neck wraps1 x With thermal storage bagNotes:Manual measurement, please allow slight errors on size.The color may exist a slight difference due to different screen displays.Please pay attention to protection, keep away from pointed objects.