The Nash Siren Micro Swing Arm is designed for maximum sensitivity and versatility, letting you adjust contact with the lead via the sliding drag weight to cover everything from slack lining to long-range work where drop-back bites are expected. - Dovetail moulded bracket for easy mounting and removal from buzzer bars and pods - Spring loaded line gate retains line until the rod is lifted from the rests - Available in 6 colours to match LED options on R2, R3+ and R4 alarms plus a cult black option - Accommodates isotopes – maximum dimensions 12mm (l) x 3mm (w)