👍 【PLEASE READ THIS BEFORE YOU BUY】 - (1)✔ This Suction Grab Bar only works on tile size LARGER THAN 4x4", (2)✔ The suction discs can not be mounted on grout seams. (3)✔ Make sure there's no texture on the shower wall, (4)✔ The mounting surface must be flat, non-porous and smooth for any other applications..👍 【NO TOOL REQUIRED INSTALLATION】 - This tool-free Suction Shower Bar is easy to install. (1).Clean the rubber discs and the surface it is to be attached to thoroughly. (2). Press as hard as possible against the wall till the green indicators show up. (3). Press down on the flip-up easy release tabs, you will feel negative pressure. The greater the pressure, the better the suction..👍 【SAFE TO USE WITH INDICATORS】 - The indicators on the side of the suction cup will change from red to green when a safe and secure hold is achieved. Before each use, test the firm hold of the suction device. Ensure that both indicators are GREEN. If the adhesion seems insufficient, release the suction assist bar and reattach again..👍 【PERFECT FOR ALL AGES】 - This could be a sweet gift for elderly parents/grand parents. Medical balance assist grip rail for tub/shower safety of elderly, kid, handicap, injured, pregnant...etc..👍 【ONE-YEAR WARRANTY】 - These suction grab bars come with a one-year warranty against any manufacturing defects.