Inna…Vibrapods do pretty much exactly what other, much more expensive isolation products do…turn vibration into heat. If you touch the floor next to my main speakers when relatively loud music is blowing through them you will feel ZERO vibration from the speakers into the floor, and thus should be able to understand that nothing much from the floor is being transferred up into the speaker boxes. This improved the tonal coherence of the speakers and works beautifully in my system. I've had these under my speakers for years and have noticed in that time a movement in home audio toward what you describe as "rubber" isolation products surrounded by fancy metal casings or whatever, which are designed to accomplish what my 'pods do so well…they're just not expensive enough to lure some into using them, which isn't all that unusual in this hobby.