Black Labrador female, 25kg. I bought this for when she developed joint pain in her front legs in her later years, but she passed away without using it, only needing support for her hind legs. I hope this can be helpful for caring for a large dog. I will give it to someone who can use it. A 3L size walking assist harness for dogs with weakened front leg muscles and joints. - Brand: Petio - Product Name: Walking Assist Harness - Size: 3L * Although unused, for shipping via "Yu-Packet," the item will be removed from its packaging before being sent. Please refrain from price negotiations.