Features: brand new and high quality Suitable for all portable air conditioners and exhaust pipes with an outlet diameter of 16cm. Used to connect to exhaust pipes and window panels. Made of high-quality plastic materials, durable. Durable and cost-effective, it can be used for a long time. Easy to install and remove. Package Includes: 1x Exhaust Hose Connector Specifications: Material: Plastic Product Size: No. 1 Connector 170x45mm/6.29x1.77inch No. 2 Connector 190x60mm/7.48x2.36inch No. 3 Connector 185x40mm/7.28x1.57inch Exhaust Hose Connector Diameter: 16cm/6.19inch Type: No. 1 Connector/No. 2 Connector/No. 3 Connector note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.