D-Tunnel Plug Medium

Perfect fit medium double tunnel plug - clear

Pros: Not hard to insert No smell or odor Easy cleanup Cons: Staying in. This product will not stay inserted once you get it in. I can get it to nearly stay in on all fours, but I wanted to walk around with it in. This is not going to happen with this product. Once you try to stand up, it will pop right out. The last bulge to the base is too short, which makes it impossible to walk around with, or keep it in. It was a waste of money to buy something that I had to throw out because it lacks the ability to stay no matter what I tried. It is a nice concept, but poor planning of the product. I have bought several things, and this will not be one of them again. If you want something that doesn't stay in everytime you move and pops out, then this is the product you want. Otherwise, I wouldn't waste your money like I did.