This is a pre-made wig foundation in two colours. Dark Blonde and Dark Brown. The edge of the foundation is reinforced with tape, the wig springs/stays are on the outside of the foundation, you may want to unpick them and resew on the inside.
They come in sizes - 54cm, 56cm, 58cm and 60cm. They tend to come up quite small, so you may want to order the next size up from what you need. You can use the Lace Dye (No 143) to dye the foundations.