Shake N Go Freetress Equal Romance Weave Hair 18 is a 4-curl pattern that is safe to use with curling irons. It is a combination of two different lengths, 17.5" and 13.5", that create a finished length of 13.5". This weave hair is perfect for creating a romantic curl pattern that will last all day. It is made from high-quality synthetic fibers that are soft and lightweight, making it comfortable to wear. It is also easy to style and maintain, so you can enjoy your beautiful curls for a long time.