Simply hemp up the treaded end of the valve and insert into the bottom of your drone stocks. These drone valves are screw adjustable which means that they can be accurately set to suit your blowing strength. As well as assisting with strike in and cut off they also regulate air flow to the drones giving a much steadier drone sound. To avoid having to hemp use along flexi connectors which fit over the bottom of your drone stocks and simply insert the threaded end into the connector. Once adjusted to your blowing strength, you will be amazed how this steadies up your drone sound!
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