13X4 FULL FRONT UNITS Transparent Full Front Lace Units with 180-200 density made of 100% human hair. Small knots guarantee the highest quality on the market. Our units are equipped with combs, adjustable straps, and our custom band, providing extra support for effortless wear. The knots are lightly bleached to a safe level. Our human hair is sourced from young female donors, ensuring strong and healthy hair. It is also very soft and can be styled with heat tools. With proper care, our hair can last for at least 3 years.