Description: Durable Material: Signal mirror survival is made of acrylic, which can reflect sunlight and is sturdy and durable. Good Reflective Effect: This signal mirror has a visible distance of up to 100 kilometers on sunny days, and can also be used on cloudy or with lights. It is suitable for outdoor activities and can also be used as a mirror. Multi Function: The emergency reflective mirror has a whistle on the lanyard, which can be hung on a backpack or other outdoor equipment, suitable for long distance communication in the . Wide Applications: Backpacking Mirror is suitable for outdoor survival activities, hiking, camping, mountaineering, running, skating, fishing, hunting and more. Gift: Signaling mirror whistle is a good gift for family members, colleagues, or friends who want to try outdoor survival. Specification: material: acrylic Package Includes: 1 Survival Signal Mirror Note: 1. Please allow slightly error due to manual measurement.2. Due to the difference between different monitors, the picture may not reflect the actual color of the items.3. Wish you a wonderful online shopping!