The shake-away makes them think a predator is in the area. Note: IT HAS NO SMELL DETECTABLE BY HUMANS but it keeps the critters away! As I said before, I won't be without it. I live where I couldn't use traps or poison without getting in serious trouble from the townehouse management. Only one maintenance worker knows how I solved the problem. Management is just happy I'm not complaining this year because I nearly broke my ankle in a mole hill last summer.
I am a writer and WOULD NOT post anything about this product if it didn't work so well. Look on the Maine site and you can see a plastic container for holding the scent in a specific location. I have one of those stuck in the middle of my 20 ft square butterfly garden. I want butterflies but don't want mice/other rodents that close to my house.
I will hang bags of it just under the doorjamb this winter to keep the mice from deciding my house would be a nice warm place for the winter with plenty of bird-scattered birdfood to eat too!
Supposedly an inch wide line would protect 10 feet (5 on either side of line) of land. I've drawn a line between my townehouse and the townehouse on the other side of the lawn between the two sets of 8 townehouses. This kept the moles/voles away for 6 weeks last time! I just redid my lines last week because they are starting to tunnel again. I have 1 1/2 cans left so I can treat once more if I need to.
I will also use this around my species tulips/miniature daffodils planted in containers so the squirrel doesn't dig up my miniature rock gardens this winter trying to get to those bulbs.