Using these Ardell Wispies 703 strip lashes is easy. First, measure the lash strip against your eye and trim it if needed. Then, apply a thin layer of lash glue along the band. Wait for a few seconds until the glue turns tacky. Carefully place the lash strip as close to your natural lash line as possible, starting from the inner corner and pressing gently to secure. When it comes to maintenance, after each use, remove any excess glue from the band. Store the lashes in their original case to keep their shape. As for precautions, avoid getting the lashes wet with water or makeup remover that could damage the hair. If you experience any irritation, stop using the lashes immediately.