Material: Made of high quality stainless steel, environmentally friendly, safe, strong, durable and rust-proof. Exquisite workmanship, beautiful decoration, a must for modern new home. Modern Design: Round flat cover with shutters, built-in mosquito net, with shutters to prevent rain and rain, and windproof net to prevent small animals from entering the house. Easy installation: By adjusting the exhaust valve control valve, the exhaust valve can be easily controlled to meet your needs. Perfectly fixed to the ceiling or wall, easy to remove for easy cleaning. Versatile: Vent duct covers are great for indoor exhaust, reducing noise, great for bathroom vents and extractors, air conditioning units, ceiling fans, kitchens and vents Ventilation: The circular mesh structure allows the wind to flow easily in the space you live in, providing you with a new, odorless living and working environment. Delivery Quantity: 1 Piece Size: suitable for 6.7cm interface Color: silver Kind tips: 1. Package content: only the above package content, excluding other products. 2. The size is measured manually, please allow 1-2 cm measurement error. 3. Due to different displays and lighting effects, the actual color of the item may be slightly different from the color shown on the picture.