[BlindHandyMan] Rat Zapper

[Glenn Lemacher]

Hello, my understanding is that the so called Rat Zapper really works. A 
fellow was telling me that it uses four double A batteries and he said that 
they don't last long and one must replace them often.I want to use it in our 
basement just in case there are any mice down there and I'm wondering if it 
will work well for mice only. Also might anyone know just what type of 
material this devise is made of?
Thanks for any help.