⚫︎ A soft rubber band is inserted and lightly tied. Please retie it to fit your cat's neck. After tying, cut off the excess rubber band and insert the knot into the rubber band hole. ⚫︎ This is a soft, gentle collar for your cat's neck. ⚫︎ (Collar Length) Approximately 19cm to 35cm ⚫︎ (Width) Approximately 6cm Please note that this is a handmade item, so there may be some misalignment, distortion, and loose threads.