①. Made of ABS material, ②. High strength and corrosion resistance. ③. Smooth, small air resistance. ④. For connections between pipes. ⑤. Installed on the wall as a ventilation duct. ⑥. Can be used as air inlet and outlet, installed in indoor ventilation equipment ⑦. Material: ABS ⑧. Colour: Black ⑨. Size: 100MM, 110MM, 150MM, 200MM ⑩. Quantity: 1PCS ⑪. List 1: 1 x Flange Connector ⑫. 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. ⑬. 2. Please allow slight manual measurement deviation for the data. ⑭. This product is crafted with materials to ensure its durability and longevity. Whether for daily use or special occasions, it provides performance and a user experience. ⑮. Offering performance and quality at a reasonable price, this product offers value for money. Whether for your own use or as a gift, it is a cost-effective choice. ⑯. We offer 30 days returns. If you are not satisfied with the product, you can return it within 30 days for a full refund. We are committed to ensuring that every customer's shopping experience is of standard. ⑰. This product has been designed to be compatible with a range of devices and scenarios. No matter which model or brand you use, it can be easily adapted to provide experience. ⑱. The product design is simple and clear, and the operation is easy to understand, even for the first time. Whether you are a novice or a veteran, you can quickly master it and enjoy convenience and efficiency.