2 x NGT VS Bite Alarm Indicator with Snag bars & Storage Case including batteries LED 8x Screw in snag bars (included.) 4 x 20mm and 4 x 75mm allowing four different formats of use. Variable volume, Variable Tone, Waterproof, Latching 20 second blue LED, Long life LRV08 battery (included), On and off control Dispatched 2nd Class Post Free