I'm selling this because I no longer need it. Anisapo Knuckling Support, Size M This is a pull-up belt supporter that helps to return the paw to the correct position and allows the dog to walk with their paw pads on the ground. I purchased this year on a flea market app, and it was used indoors 2-3 times. My 16-year-old dog developed knuckling, and wearing this improved the condition somewhat. It has been used outdoors a few times, so please refrain from purchasing if you are concerned about minor details. Also, please be aware that I have two indoor dogs that shed. *I am also listing this on other sites, so there is a possibility that I may not be able to sell it depending on the timing. Thank you.