Nishi offers 24 different sizes Artificial nails that fits most finger sizes. It is easy to trim and file them to in any length and shape as per your requirements. How to Use: Step 1 : Remove any nail polish. Wash then dry hands thoroughly. Nails must be completely dry. Step 2: Select the artificial nails that most closely match each of your own nails . Apply one nail at a time. Step 3: Position and press down firmly onto your own nail close to but not touching the cuticle. Hold for a few seconds until fixed . Step 4. Avoid prolonged contact with water for best adhesion .