The Lens Cap for the Insta 360 ONE X2 securely slides right over the top of the camera & can easily be pulled off. It covers both the front & rear lenses to protect them from scratches & dirt when you have the camera in your pocket or bag. It's made from silicone & designed to the contours of the lenses It also fits over the lenses if you have the optional ONE X2 lens guards already attached to the lenses...