Features: This product has two parts: Rear Lens Cover & Camera body cap Camera body cap is used when storing your camera body or after the lens has been removed from your camera body. It helps to keep dust from your camera mechanism, especially to reduce the dirt on CCD/CMOS. Another part-rear lens cap is used to store your lens solely after the lens is removed from your camera. This set of body cap and rear cap are made of high quality hard plastic material. To replace original R-F-5 cap and Lens dust cap RF Specifications: Suitable for: All CAN0N RF system Camera and Lenses, including third-party RF mount lenses if there'll be in 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. The back mount of original Mount Adapter EF-R Note: it is not suitable for CAN0N mount system, EF-M mirrorless system and CN-E cinema system Note: Transition: 1cm=10mm=0.39inch Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: Optional 1 X Rear Lens Cover 1 X Camera Body Cap