JJC Rubber Eyepiece Eyecup for Nikon DK-19

OVERVIEW
The Eyepiece is designed to seal out stray light for improved viewfinder optics. Made of soft TPU rubber, it protects your eyes from scratches, especially for eyeglass users. The eyepiece adopts an ergonomic oval shape to fit your eyes better. Besides, the eyepiece is 360º rotatable, so you can adjust it for horizontal or vertical view. 
Product Highlights?
Seals out stray light for improved viewfinder optics
Soft TPU rubber allows for eye comfort, especially for eyeglass users
Ergonomic oval shape is designed to fit your eyes better
Rotates 360ºfor horizontal or vertical view
Material?
TPU Rubber with ABS
Replaces Nikon DK-19