Compatibility: This product is compatible with CANON EOS R7 camera. Effect: Protects the viewfinder from dust and debris, and helps block unwanted light. Material: This product is specially designed with hard plastic for a long lifespan and resistance to damage. Easy Installation: No adjustments are required for direct replacement, ensuring perfect compatibility and high reliability. Product include a total of 1pc Viewfinder Eye Cup,2pcs Screws, which can completely meet your daily use needs and replacement.