Features:  
Made of high quality metal, solid, durable, wear resistant, and long life time.
Delicate design and good workmanship.
Full manual operation, manual focus, and manual exposure.
Easy to install, remove and operate lens smoothly.

Specification: 
Material: metal

Suitable for 
Lens: Nikon AI Lens
Camera: Sony E Mount Camera

Package List:
1 x Adapter Ring