nuoshen 8 PCS Sucker Cups, 41 mm Plastic Sucker Pads Round Threads Suction Cups with knurled nut Clear for Daily Hanging Extra Strong Suction Holder

The design of these suckers mean they don't rip your shower curtain, brilliant.

I bought these to hold trade plates onto cars as they are meant to be on the outside of the vehicle. They work absolutely perfectly for this. I tie the plates on as well just in case but so far so good. I am sure they would work for many many things.

Did the job

These were bought for an unusual application - opening handle-less drawers. They stick easily to a flat surface and hold on well enough to open a heavy drawer. In fact it's pretty hard to get them back off again, and they don't slide very easily either. Can't fault them so far.

Great suction did the job and got rid of all the discolouration old ones. Yes I would buy again.

Honestly, the quality of the materials is okay. It even comes with a container which I was not aware of. However, Its adhesion is not constant and leaves off the surface after a couple of hours. Definitely, NOT suitable even for the smoothest walls.

As described

The suction on these is decent, but does degrade after prolonged periods. They require re-adjustment every few days or so. I used these suction camps to attach a turtle ramp to the inside of an aquarium, so the conditions weren’t exactly ideal; they did serve their purpose. The build quality of these is good, and they actually do feel of good quality. The thread and nut for these to secure the suction cup is very good, and a very welcome addition given the price. The product comes within a case, which is very cheap feeling, but serves its purpose. These won’t let you down, and I have purchased them repeatedly.