Product Description

4M-Doorbell Making kit : Learn about electromagnetics as you transform a screw into a magnetic striker.
Use it to complete an electric circuit and construct this handy doorbell.
you’ll learn about electromagnetism and how it works, and how you can do something like transform a simple metal screw into a magnetic hammer. By completing the electrical circuit in this kit, you will construct a handy little doorbell that you can use to have visitors announce their presence at your bedroom door.Contains a base board, bell, coil cover, L-shaped cover, battery cover, hammer, coil, adjuster holder, hammer holder, washer screw, screws, adjuster, wire with metal ring, long screw and nut, terminal caps and detailed instructions.