Features:Energy efficient and great for the environmentMini size: Radius: 5cm、 thickness: 4mmWaterproof and wind-resistant: Can be light up fast even at windy beach and do not worry about making the lighter wetThe reverse side can be used as a signal mirror、 and it also can be used as an ashtray、 convenient and practicalGreat survival tool in case of emergenciesSuitable for many outdoor activities ( Camping、 Hunting、 Hiking、 Fishing etc. ) For: Vocation、 Outdoor、 Camping、 TravelMaterial: Plastic、 Metal