The M12 Mount Thread Extension Adapter is a accessory designed for CCTV lenses. It is compatible with various CCTV lenses and can be easily installed and used. Made of durable materials, this adapter ensures long-lasting performance. With this adapter, you can easily extend the M12 mount thread and achieve flexible positioning of the CCTV lens. Upgrade your surveillance system with this reliable and versatile M12 Mount Thread Extension Adapter.