Using this collar is easy. Just pass the end of the collar through the buckle and adjust it to fit your pet comfortably. Make sure it's not too tight or too loose. When it comes to maintenance, you can wash it with mild soap and water if it gets dirty. Avoid using harsh chemicals as they may damage the nylon material. Also, check the stitching and the nickel - plated parts regularly for any signs of wear and tear. If you notice any issues, replace the collar to keep your pet safe.