Prevent foreign objects from colliding and scratching the lens. Real machine mold without distinction between front and back, smooth use. The material feels soft and comfortable to the touch. Silicone material, resistant to tearing and deformation, durable and easy to clean. Not occupying space, it can also prevent dust and reduce wear while storing. Material: Silicone. Size: 6x5.5x5.5cm(2.36x2.16x2.16in). Applicable to: For Insta360 X5/X4. Package: 1 x Lens Cap. Note: Camera not included.