no suction power [SEP] this came in fairly quick installed it in my shower it is marble followed the instructions and basically used the hook to hold my wash cloth it lasted up about days when it landed it scratched my new tub and i decided not to put it back up not real good suction i think and the way it works with time and moisture you need to be aware if your tile is not smooth this may not work the glue pad is another option but on seems extreme and i do not want to risk damaging my marble tile