77205 Outdoor Toll Booth Specification:100% Brand New and High QualityProduct Name: Signal MirrorSize: 51*38*4mm Material: AcrylicColor: Silver Especially for Long Range Communication Field, Send Reflective Signal; With aiming function, accurate signal transmission, fast; When the weather is clear, the optical signal transmission can reach more than 100km; Cloudy or at night when there is light, it can also be used as normal; A mirror is usually used; Package Included:1pc Signal MirrorNote: Please allow 1-3mm error due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item.