This product includes two parts: a rear cover and a cap. The cap is used when storing the camera body or after the lens has been removed, helping to keep dust away from your camera mechanism, especially reducing dirt on the CCD/CMOS. The rear cap is used to store your lens separately after it has been removed from your camera. This set of cap and rear cap is made of high-quality hard plastic material. Designed to replace the original RF-5 cap and lens cap RF. Specifications: Suitable for: All CAN0N RF system cameras and lenses, including third-party RF mount lenses if available in the future: For camera: R, RP For lenses: RF 50mm f/1.2L USM RF 28-70mm f/2L USM RF 35mm f/1.8 Macro IS for STM RF 24-105mm f/4L IS USM, etc. Rear mount of original mount adapter EF-R Note: It is not suitable for CAN0N mounting system, EF-M mirrorless system and CN-E bio system Package includes: Optional 1 X Rear cover 1 X Cap