To use these replacement feathers, simply take your Peek - a - Bird™ Electronic Cat Toy and insert the feathers into the designated openings. Your cat will love chasing the fluttering feathers. Make sure the toy is placed on a stable surface to avoid it tipping over during play. When your cat isn't using the toy, store the feathers in a dry place to keep them in good condition. If the feathers get dirty, you can gently wipe them with a damp cloth. Always supervise your cat during play to ensure their safety.