The portable suction grab bar is easy to install, no tools needed, no hole to drill. The large suction cups attach to virtually any smooth non-porous surface. This bar is great for assistance in or around the tub, or next to the toilet. Mount on the wall for help on the stairs; next to a chair for assistance standing or sitting. Can be used as a temporary towel bar. The bar is completely portable so you can take it with you on the road. Use it in the hotel, at family or friend"s homes. Easy to mount and remove with no holes to fill, no damage to the walls. Perfect for renters. Bar adjusts in length from 17.25" to 22.2".