The Middle Atlantic 5-RS18 is a rack slider accessory designed to provide a space-saving method for sliding small racks into millwork openings. The low-friction sliders allow for easy integration of racks into furniture openings, making it a convenient option for those with limited space. The wear-resistant, low-friction material used in the 5-RS18 is kind to most furniture surfaces, ensuring that your furniture stays protected during the integration process.