Weather strips are materials used to seal gaps around doors, windows, and other openings in buildings to prevent air and water from entering or escaping. The wholesale industry for weather strips involves the distribution of these materials to retailers, contractors, and other businesses that specialize in construction and building maintenance. Weather strips come in a variety of materials such as rubber, foam, and vinyl, and are designed to fit different types of openings and structures. The industry plays a crucial role in ensuring energy efficiency and reducing utility costs for buildings.