This is a great idea. I’ve had cats and horses in the past, and they really respond well to bell training. I do not have a dog, myself, right now, but have many, many, many friends who do, lol. One good friend is even a professional dog sitter, walker. Although, I think this would be great to use high up on a door, to let you know when people enter or leave. That is essential with little kids. No matter where you install it on your door, they do include the hardware to install it with. It only requires two screws. Now, if you want to install this on a glass door or metal door, you can get commercial strength double sided sticky tape, at your local hardware store, and still be able to use this. The bell unit is well made, and made out of all metal. It’s pretty attractive too, which is good, since it is now a fixture in your home. If you have cats, this would make a great toy for them, as well. My cats have always loved bells. It seems to be a favorite for most. The springiness of the bell is pretty nice. It’s a well-made product, and I feel, can be used for many purposes.

I received this at a discount. I was under no obligation to post my unbiased and honest review. – EMDMAK Dog Bell Potty Training Bell Doorbell for Housebreaking & Housetraining

If you would like to purchase this product, it can be found here on Amazon: https://www.amazon.com/gp/product/B01M15ZO9N/ref=oh_aui_detailpage_o03_s00?ie=UTF8&psc=1

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