Something like this instead of the small black ones. Habitat or Argos, called Tam Tam Stool, around £15 | Gorgeous furniture, Bar stools, Cool bar stools
PEPE - Round Shower Stools for Elderly, Bath Seats for Adults, Disabled Bathroom Chairs and Stools, Non Slip Shower Seat Adjustable, Bath Stools to Sit On, Black Shower Chair, Free Assembly :
Buy Shower Seat with Backrest | Shower chairs | Argos