Two small clips on the back secures the eyepiece onto your camera. Replaces sony Eyecup FDA-EP11 . Custom designeda soft-touch eyecup to provide cushioning around the camera's eyepiece. Block out unwanted light from your viewfinder. Useful for eyeglass wearers and others to keep the tip of the nose from touching the camera body. The Eyecup is designed to provide a soft landing for eyes and glasses on select Sony cameras. Made of plastic and rubber Compatible with: Sony A58 A7SII A7RII A7II A7S A7 A7R A65 A57