The gopro hero3 and hero4 protective lens are perfect when yoursquore recording freehand or using the gopro outside of its housing this will protect your camerarsquos lens against any dirt dust and scratches that may arise when using the gopro gopro hero3 protective lens features protect the lens of your gopro camera from dirt dust and scratches ideal for use with the frame mount or handheld shooting with just the camera includes two protective lenses compatibility