Complete set: This product includes 2 sets of 25MM roller blind controllers, providing everything needed for a smooth installation in any environment. Easy installation: Includes all required accessories, allowing quick setup without the need for extra tools or purchases, saving time and effort. Bead chain included: Featuring a convenient 3meter bead chain, you'll have all components to operate your blinds immediately upon opening the package. Durable construction: Crafted from sturdy plastic materials, these controllers deliver lasting performance and dependable operation over time. Use scenarios: Residential spaces: Ideal for upgrading living rooms or bedrooms with standard 25MM roller blinds, enabling a quick, tool installation. Commercial settings: Suitable for offices or meeting rooms requiring multiple blinds to be upgraded efficiently with a single kit. Rentals or renovations: Easy replacement or upgrade with minimal downtime and no extra purchases needed.