The shower bench I have is named Psilvam Poly Lumber Shower Bench, Shower Stool with Storage Shelf, Water Resistant & Non-Slip Design Shower Seat for Bathroom, Living Room, Bedroom 21 1/4"×14"×18 1/2"
https://www.amazon.com/gp/product/B0B4C994SF/ref=ppx\_yo\_dt\_b\_search\_asin\_title?ie=UTF8&psc=1