Modular cleaning system for window tracks and sliding doors: Arched ends capture sliding doors precisely. Interchangeable head adapts to different window track designs for tailored results. Simultaneous dualdirection cleaning: Doublesided brush action cleans in both directions at once. The Vshaped scraper targets corner contamination for efficient window path cleaning with less effort. Thorough window frame care: Dry wipes lift dirt; wet brushes dissolve sticky messes. Together with the 4layer fabric, they ensure easy removal of dissolved residue. Heavyduty cloths: Wearresistant microfiber cloths resist bending and breaking. Designed for frequent use; withstand washing and air drying for reliable cleaning results. Use scenarios At home for kitchen and living room sliding doors, where the arched ends and interchangeable head help manage different track designs for a precise clean. In bathrooms and kitchens to clean window frames and corners efficiently, using the dry wipes for debris and the Vscraper for corner contamination. For seasonal exterior cleaning of patio doors and large windows in homes or offices, with durable cloths that endure repeated washing and maintain performance.