Using these nail art stickers is super easy. First, make sure to apply a base coat on your nails. This helps the stickers stick better and last longer. Then, pick the sticker you like from the over 200 options in the calculator - shaped package. Peel it off gently and place it on your nail. Press it down firmly to ensure it adheres well. After you've decorated all your nails, finish with a clear top coat. This will give your nails a shiny look and also protect the stickers. As for maintenance, try to avoid excessive contact with water and harsh chemicals as this can damage the stickers. If a sticker starts to peel, you can use a small amount of nail glue to re - attach it.