Feature:1. Suitable Models: Safety plug smoke stopper fuse is suitable for XT60 or for XT30 and for use in model aircraft, cars, boats.2. Prevents Short Circuit: The smoke stopper fuse utilizes a resettable fuse (PPTC) and an excellent connector(not including) to help prevent short circuits from causing electronic devices to explode.3. Procedure: Simply insert the smoke stopper fuse between the power source (usually your battery) and the component you want to power for the first time, and you will quickly know if your model is shorted.4. Overload Protection: By inserting the smoke stopper fuse between the battery and the model, you will see a visual indication of whether everything is okay. Provides overload protection when assembling models.5. Prevents Reverse Polarity Problems: The smoke stopper fuse is a simple way to prevent ESC reverse polarity problems when high currents are turned on.Specification:Item Type: FuseMaterial: ABS, PCB.Package List:1 x FuseNote:Smoke stopper fuse is a must for new RC builds. This is especially true for drones, as they have a large number of wires, complex distribution boards and numerous ESCs that can easily reverse the components.