VEVOR Shower Chair for Inside Shower, 360 Degree Swivel Shower Seat, Adjustable Height Shower Stool, Non-Slip Bench Bathtub Seat Stool for Elderly Disabled Adults Handicap, 300 lbs Capacity

I have been using this stool for about two weeks and so far no damage

NO, IT HAS SOFT RUBBER FEET, DOES NOT SLIDE AROUND EITHER

It's fine. Just make sure that the legs -all of the legs- are on the flat of the tub, not in any way on a curved part. The 'feet' of the stool are a kind of rubber with drain holes on the bottom so that moisture can, well, drain away. After I wipe down the shower after use, I direct a small fan so that it blows across … see more It's fine. Just make sure that the legs -all of the legs- are on the flat of the tub, not in any way on a curved part. The 'feet' of the stool are a kind of rubber with drain holes on the bottom so that moisture can, well, drain away. After I wipe down the shower after use, I direct a small fan so that it blows across the seat. It dries quickly and I haven't been troubled with mold. I wrote another review awhile back where I warned that if you are planning on relying heavily on the swivel feature---don't; cause it's not that great. Other than that, this is the only one (after trying three others) that actually fits tub that I have. see less It's fine. Just make sure that the legs -all of the legs- are on the flat of the tub, not in any way on a curved part. The 'feet' of the stool are a kind of rubber with drain holes on the bottom so that moisture can, well, drain away. After I wipe down the shower after use, I direct a small fan so that it blows across the seat. It dries quickly and I haven't been troubled with mold. I wrote another review awhile back where I warned that if you are planning on relying heavily on the swivel feature---don't; cause it's not that great. Other than that, this is the only one (after trying three others) that actually fits tub that I have.

It has rubber knobs in the feet. I put it right on top of a rubber shower mat. Very sturdy

We used the suction cups & there was no harm to the shower floor. The shower is stand alone with full size sliding doors.