<b>Specification:</b> <br>color: white+black; <br>size: 3 inch; <br>material: high quality abs; <br><br><b>Fueature:</b> <br>1. easy to use; <br>2. easy to install; <br>3. making fresh air for your house; <br>4. abs material which environment friendly and non-toxic; <br>5. give a better life to you. <br><br><b>NOTE:</b> <br>the HG POWER air vents have 3''/ 4''/ 5''/6''/8''. you can find any size follow you want. <br>We have worriless 12-month and friendly customer service.If there exist any problems, please feel free to contact us. we will reply immediately in 24 hours.