This box kit includes activities for an electric bell or alarm. Professor Ein-O's "I Know" Guide included. The kit contains compact workbench, connector springs, buzzer, buzzer holder, on/off switch, plastic film, thread and instruction booklet. The instruction booklet contains info-briefs on electricity, magnets, morse code chart and instructions on how to build a buzzer and alert alarm. Fun for ages 7 and up!
WARNING: CHOKING HAZARD - This kit contains small parts. Not for children under 3 years.