Features: High-quality material: Made from high-quality plastic, wear-resistant and durable for long-term use. Double-sided design: Connects pipes with diameters of 60mm (2.36") and 75mm (2.95"), or connects pipes of different sizes to a fan, creating a seamless ventilation system. Improved air circulation: Helps distribute airflow evenly, supporting better indoor air quality and thermal comfort. Application: Ideal for exhaust fan systems and suitable for various air circulation, ventilation, heating, and cooling applications. Can also be used to ventilate AV equipment spaces, cabinets, shelves, and cupboards. Easy installation: Simply connect the corresponding pipe size. Can be secured with tape, adhesive, or steel clips. Note: - Actual color may vary slightly due to lighting effects. - Please allow 13 cm 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