The Inline Drone Valves are designed for striking-in and cutting-off perfectly every time.
They also act as an efficient air flow regulator to give a steady and concise air flow to the drones for a steadier sound.
The Inline drone valves are only able to be used in the Ross canister Pipe bag, and they attach onto the top of the canister, then to the different hoses.
For those not playing a Ross canister Pipe bag, would use the Pipers' Choice Drone Stock Plugs for striking in and out perfectly.