The item for sale is the blue one in the fourth picture. It is not an official product. Apparently, dogs don't dislocate their shoulders, but the situation was that the shoulder joint was loose, and the dog couldn't walk. When the shoulder comes out, the legs don't move well, and since it's a senior dog with no muscle, recovery wasn't expected, and it was heartbreaking. This is a handmade supporter, modeled directly from the product. With the 3-day rental, I could tell the size, but I wasn't sure about the effect, so I made a prototype before purchasing the 19,800 yen product. As a result, my dog can't live without this, and when it's removed, the limbs contract, and it seems like all the joints come out. My dog is a Chihuahua, about 2 kg, and this is a little big for her. The official product is probably for dogs weighing 3-5 kg. The official product only comes in this size, so I made it in this size. I had her wear a short-sleeved T-shirt underneath. (This also prevents chafing) It's handmade, but with this, she was able to walk properly for six months, and it was indispensable. Recommended for those who have similar symptoms and want to try it out first. For senior dogs with muscle loss, you might want to reinforce them during walks. Home cleaned. Due to the nature of the product, some dog hair and fiber debris may remain and cannot be removed. Please understand. I think it would be difficult to understand how to assemble it if I take it apart, so I will send it with the Velcro attached. This is a prototype made by an amateur, so I cannot guarantee any medical effects. Please understand that this is based on my experience of making and using it and finding it helpful. It seems that the official product doesn't have a demo machine now, so I recommend it to those who wanted to try it out. Of course, the official product is well-made and I think it's much better.