LOVEXIU Suction cup Ø 40mm, 8 PCS Suction Cups M5 Threads Stainless Steel, Suction cups with knurled nut clear for car window, toothbrush holder, shower shelf, soap holder, camping

These suckers work really well. Two of them have securely anchored a medium-sized shower caddy. If I had relied simply on the caddy’s hook it would have been unstable. The screw fitting is particularly effective and is a feature that many suckers lack. Finally, although the description of the suckers suggests that they do not adhere to shiny tiles, they do adhere perfectly to a shiny wall panel. These

Held my Solar Panel firmly inside my window, also can be reversed for external mounting.

Superb product, better in the flesh with great strong suction. Does exactly what it meant to do. Very recommended.

Brilliant these have been used to keep our outside table glass in place and they have withstood very strong winds

Some didn't have thread inside so couldn't ues them

These are fantastic sucker for fixing the awning to the caravan side even in high winds the hold fast very well , so good I’m buying some more

Perfect for what I needed them for, was worried about size and if they'd actually stay stuck! (made two temporary blackout curtains to stick to windows) the suction is really strong. You can unscrew the back, feed through hook or whatever, screw the back bit on and it holds fast!

Lovely product, is very strong to hold.