These Bicycle Peacock Playing Cards are easy to use. Just shuffle them well before starting your card game. When handling, make sure your hands are clean to avoid getting dirt on the cards. To keep them in good condition, store them in a dry and cool place. Don't expose them to extreme heat or moisture as it can damage the cold - foil design. If the cards start to feel a bit sticky, you can gently wipe them with a dry, soft cloth. Enjoy your card games with these beautiful and unique playing cards!