1.3kgs afo fire extinguishing ball is a fully automatic fire extinguisher. When throw into or rolling to fire, it will explode and make huge noise to catch everyone's attention nearby. You can also place it where the hot spots are such as flammable objects, circuit breaker box and gas tank. In case of fire, it will put out the fire by itself thus guarding lives and property. Descriptions: * Product name: AFO fire extinguisher ball * AFO HS: 842410000 * Instruction: Fixed position by automatic fire sensor and/ or throw in fire area * Content: Environmental harmless dry powder * Automatic reaction time: 3-5 seconds * Effective extinguish area: 3 m3 * Validity: 5 years * Shape: ball type * GW: 1.3~1.5kgs