The KidzLabs Intruder Alarm will be the perfect kit for science-minded kids! Learn the science behind building an electric circuit and build your own kick wire door alarm with this Science Museum kit. Install it in your bedroom and stop those unwanted intruders breaking in! The kit includes an alarm case, a battery holder with switch, a buzzer, metal pegs, trigger plate, wall mount, trigger plate holder, string, adhesive tape, cardboard door hanger and instructions. Enjoy learning the science behind circuits in this fun, practical way!Pack size: 22 x 17 x 6cm (8.7 x 6.7 x 2.4 inches)Includes the components for the alarm and instructionsSuitable for ages eight years and overPerfect for learning about circuit science!KidzLabs Intruder Alarm