Heavy Duty Lock Alarm - Here’s a heavy duty lock with a difference! The 110 Decibel alarm will sound if anyone tries to tamper with it. Made of ultra hard steel cable covered by armoured steel links and a protective vinyl sleeve(dia: 25mm dia), this lock alarm is ideal for all kinds of use on board and ashore, or for trailers & boats. It comes with a high security key and lock cylinder, and a steel lock chassis with tough outer casing. Length: 28”. Uses 2 x AAA batteries (Not supplied)