High-quality material: Made from durable, wear-resistant plastic that is not easily broken, designed for long-term use. Double-sided design: Connects pipes with diameters of 60mm (2.36") and 75mm (2.95"), or joins pipes of different sizes to a fan, creating a seamless ventilation system. Improved air circulation: Helps distribute airflow more evenly, supporting better indoor air quality and thermal comfort in residential or commercial spaces. Application: Ideal for use in exhaust fan systems and compatible with various air circulation and ventilation setups, including heating and cooling systems. Suitable for ventilating AV compartments, cabinets, shelves, and cupboards. Easy installation: Simply attach the corresponding duct pipe; secure using tape, adhesive, or steel clamps as needed. Note: - Color may vary slightly due to lighting effects. - Allow 1–3 cm size variation due to manual measurement. Material: Plastic Size: 8.3 x 8.3 x 6 cm Compatibility: Fits air outlets with 60mm or 75mm diameter