BestXD(4pcs) - Treadmill Mat, Exercise Equipment Mat with High Density Rubber (3.94 X 10cm X 1.3cm )

Dose this absorb the sound and shock of the treadmill because I’m in the second floor and I have neighbor underneath that I don’t want to annoy?

Do I need a Mat also to protect a carpet or will these do the trick by themselves?

Are these waterproof? Do they absorb water or create molds when soaked in water?

Will these protect indentation from heavy treadmill on hardwood floors?