Features: Durable Stainless Steel MaterialMade of high-quality stainless steel, these ventilation grilles are sturdy and long-lasting. They can withstand various weather conditions and remain rust-free. Effective Insect ProtectionDesigned with a fine mesh, these grilles effectively prevent hexapod from entering your room through the flange. Enjoy a bug-free environment. Promote Air CirculationBy installing these grilles on the outside wall, you can ensure proper air circulation both indoors and outdoors. Enjoy fresh and wholesome air. Easy InstallationSimply insert this product into the round hole on the outside wall. For added stability, it can be secured with glue or cement. Easy and hassle-free installation. Versatile UsageThese grilles are suitable for a variety of applications, including residential, commercial, and industrial settings. They provide a practical solution for ventilation needs. Specifications: *Product Name: Circle Air Vent Grill Cover *Material: Stainless Steel *Size: 70-75mm,80mm,100mm,120mm,150mm,160mm,180mm,200mm,250mm,300mm *Color: silver Package Content: 1x Circle Air Vent Grill Cover Note: 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. 2. Please allow slight manual measurement deviation for the data.