‎Rubber

No tool install: positon suction cup grab bar on bathtub or shower wall, flip latches up. Apply pressure to HANDLE, press each latch down to lock suction grips in place. Ability to easily relocate this portable handle is perfect for travel.
Sturdy secure: suction cups work on non-porous flat surface including tile, glass, Acrylic, metal. Grab bars provide stability when entering or exiting a bathtub or shower. Can be used as a disability aid to prevent falls for elderly, disabled or injured.
Tip: bar is to be used only to assist and help balance a person’s body, Not to hold full body weight. Suction cup device must be applied to smooth flat non-porous surfaces. Do not cover grout lines, will not work on drywall, fiberglass, or marble tile.To clean, simply wipe bar itself along with the underside of the suction cups with a wet warm cloth regularly