Our lock core lubricating powder is carefully formulated from graphite powder. Designed specifically for lubricating keyholes and preventing rotation from getting stuck. The usage method is extremely convenient: Lubricate the lock core: Cut off the top of the bottle and install the syringe on the bottle mouth. Align the lock core， gently spray a small amount of powder， and then repeatedly insert and remove the key to make the lubrication more uniform. Lubricate other components: Focus the target on the components that need lubrication. Press the bottle body， spray out a small amount of powder， and then evenly apply it to the surface of the object with a tool or hand. It is recommended to use a syringe to facilitate more precise application. And it can reduce metal wear and extend the service life.