The pads have the same dimensions as the original pads from GoPro. However, 50 is obtained here for less than 20 euros. With GoPro 6 costs 20 euros! I have both both snowboarding and diving compared and could not detect any differences in the effect. With daily use, they keep several days, provided, of course, they are kept away from water drops. For the price, it is easier to replace them in time. When the originals I was always difficult tempted to extend their useful life. If the recordings are then ruined, one regrets that because one thing is certain:. Whether Wintersprort or diving in conditions of climatic conditions related: always with you! It has proven useful to put each one pad left and right of the camera into the housing. Conclusion: strong buy recommendation!