All of the following products are needed in the application of a nail wrap EXCEPT?

In the application of a nail wrap, the essential components include a primer, wrap material, and an adhesive to secure the wrap to the natural nail. Primer prepares the nail surface for better adhesion, the wrap material serves as the foundation for the extension or reinforcement, and the adhesive is critical for ensuring that the wrap bond remains intact.

Monomers, on the other hand, are primarily associated with the application of acrylic nails and serve as building blocks in the polymerization process when creating acrylic products. They are not required for the application of nail wraps, which do not involve the same chemical processes that acrylic nails do. Therefore, while each of the other products is integral to the nail wrap process, the monomer is not necessary, making it the correct choice for the product that is not needed when applying a nail wrap.