I bought this on the recommendation of a friend, who said it was very good. I set it up and observed it for a day, but my dog didn't use it at all, so I'm giving up and listing it for sale. It was only set up for one day and is unused, but I did open the package, so I've listed it as "like new." [Product Overview] This is a marking pole made by OPT CORPORATION. It's an item that helps with toilet training and is ideal for dog training. [How to Use] Easy setup instructions are included, so anyone can use it easily. It comes with a pole and a holder, and you can start using it right away if you prepare a sheet. [Included Items] - Brand: OPT CORPORATION - Product Name: Marking Pole - Instructions: Included - Accessories: Pole, holder - Color: White - Material: Plastic [Shipping] I will attach the shipping label to the box in the photo and send it. Retail Price: ¥4680