I bought these thinking they would be a fun simple solution to my son slipping when kneeling/crawling in the bath but they are actually more hazardous. I've tried everything to get them to stay but as soon as the bath fills up they lift off! I followed the instructions thoroughly, even managed to leave them a little longer than 24hrs to be sure. We have a common bath with shower over head. My partner nearly fell over in the shower because they all slid out from beneath him. Waste of money straight in the bin.