Heavy Duty Vacuum Suction Cup Hooks (2Pack) Specialized for Kitchen&Bathroom&Restroom Organization, by iRomic

They stick easily to glass and I can say they fall but not every day of course. More like once every three to four months. They hold towels easily. And work very well. Installation is less than 5 seconds

These things really hold on tight! Super quick and easy to install and very easily handle the daily load of hanging heavy damp towels on them. I'm frankly quite impressed with how well they stick given how many other suction cup items I've had in the past that just can't stay stuck. These haven't budged despite months of being tugged on every day. Another nice benefit is they keep the damp towels from resting against the sheetrock as they did when we hung them on a towel rack. As a result, we no longer have any colors/dyes rubbing off new towels and onto the walls. UPDATE: With less than six months of use, these now have a hard time sticking to the shower door. They worked great for a while and I was quite impressed because, as mentioned above, any type of suction cup device I've ever used just doesn't hold up over time. Sadly, the same is true with these. I don't know what the problem is. I scoured the door with pure isopropyl alcohol and rubbed it dry with a cloth that has never been in contact with dryer sheets or anything else known to leave a slight residue. These then stuck like they were glued on....for about 3 months. We don't yank on the towels hanging from them, so constant stress isn't the issue. The back of them is still sticky, but they just won't stay firmly on any more. One of them falls off within hours of reattaching, even when nothing has been hung on it. It's own tiny weight is enough to make the seal fail. I don't know if the dry Colorado climate makes these fail so quickly, but we'll be shopping for something else that hangs over, and clamps to, the door instead.

These suction cups are amazing and work so well. They do hold up to in the shower as this is where we needed them. The do have nice appearance.

I purchased these to hang some stained glass art in my window. Initially, I was pleased with the stars and felt confident in their ability to stay in place without any issues. However, one day, I noticed that the hook was sliding down the window due to the section part being black and capturing extra heat from the sun. Fortunately, I was able to notice it before the item fell off completely and broke my art. I would highly recommend these for a place that doesn’t get much sunlight or is indoors. However, I would advise against using them for external use or in areas that get hot.

Works as expected. No slippage. Would buy again.

Ordered the Silver, one stuck good, the other would only hold for a day or two. Contacted Amazon, they sent a replacement, I returned the original set in exchange. The replacement set was as useless as the first. The reason I gave a "5 Star" is I really don't think customers read the "One Star", which is what is deserves. The replacement set worked for approximately a week, the only item hanging are pj's, very lightweight and the other hook a "Shower Cap" Will not hold on to the wall, shower tile and have tried using it on the door, slips off all three. Very disappointed. I can't understand why Amazon continues to sell a product which does not work, waste of time and money.

These fall down constantly, regardless of how much weight you put on them. I tried cleaning the cabinet surface or shower wall with windex before applying them, making sure the suction cups were completely clean, too. They fall, never fails. Too late to return them.

I stuck these on the side of my stacking washer/dryer, which is right inside my door, and I keep all the car keys on them. They hold everything easily. I randomly use them to temporarily hold hangers full of wet clothes before taking them elsewhere to dry, which are pretty heavy. They have never once come unstuck. I like that they have two, widely-spaced hooks so I can easily separate oft-used keys from seldom-used keys. The hooks themselves are thin enough that almost any key ring fits over them easily.