Product specifications and ordering information:
1) H12 outer diameter 350 * aperture 50mm
2) H12 outer diameter 400 * aperture 50mm
3) H12 outer diameter 500 * aperture 50mm
4) H15 outer diameter 350 * aperture 50mm
5) H15 outer diameter 400 * aperture 50mm
6) H15 outer diameter 500 * aperture 50mm
 

Friends, welcome, if you have any questions about the product, or if you want to order in large quantities, you can contact me and I will give you the best price. 
Email:d15873085526@126.com
WhatsApp: +86 15367029002
Thank you very much for your presence. Wishing you a wonderful day!