Using these clip - in hair extensions is easy. First, brush your natural hair to remove any tangles. Then, section your hair at the area where you want to add the extensions. Open the clips on the extensions and attach them firmly to your natural hair. Start from the bottom and work your way up. For best results, try to match the direction of the extensions with your natural hair growth. When it comes to maintenance, brush the extensions gently with a wide - tooth comb to avoid damage. Wash them with a mild shampoo and lukewarm water, then let them air dry. Avoid using excessive heat styling tools as this can damage the hair. Also, store them in a cool, dry place when not in use to keep them in good condition.