This Body and Rear Lens Cap Kit for Sony E-Mount from Sensei is the perfect back-up in case an original gets lost. The black plastic body cap is a spare or replacement that twists onto the lens mount of the camera body, preventing dust and damage to the camera's sensor and interior when a lens is not in place. The plastic rear lens cap is placed on the rear mount of your lens when it is not in use on the camera. It protects that all-important lens from scratches, dust, water and fingerprints. Finger-grip edges on the caps aid in placement and removal.