Hand-tied extensions are a hair enhancement technique that involves attaching natural hair wefts to one's hair using a thread and needle. This method is favored for its ability to provide a natural look, as it offers seamless blending with the wearer's hair. It's customizable in terms of color, length, and density, and is considered less damaging than other extension methods since it doesn't use heat or glue. Hand-tied extensions are versatile, allowing for various styling options, and are generally comfortable for long-term wear. However, they require regular maintenance, can be costly due to their labor-intensive application process, and the initial fitting can take several hours. Despite these considerations, they are a popular choice for those seeking a high-quality, natural-looking hair extension solution.