... , Marketplace/Subway/Coal Mine etc.underground place rescue, Under-water, Fire fighting ,earthquake etc. rescure guiding etc.CHRACTERISTICEasy to be used, Energy ... large scale gathering people;7. Field or air indication rescue8. Fire/Earthquake/Flood rescue TECH DATA TECH DATA MODEL NO.:B100 ... (CM)Metal Handle Wheel: 29 *21 *37cmWeight N.W.: (KG)8/7 G.W.: (KG)10/9