They are very sturdy and work well holding charts on a whiteboard.

Very strong magnetic hold, I used for small to med notepads on office suite board and calender on refrigerator, highly recommend ...

The price is a little high, but I'd still very highly recommend them.

The spring is pretty good too.

The spring of the clips itself are also strong enough for holding heavy items

The clip is sturdy, and strong - it can hold our child's art projects or a bag of art supplies without any strain, and the springs are durable

product outperforms all other magnetic clips at hanging heavy things on the wall, thanks to its very powerful magnet and very powerful jaws, both of which require substantial strength to operate

bags.(3)This product has very powerful jaws which require considerable strength to open apart.

These powerful jaws can hold heavy things that other magnetic clips can't hold.

The Super Strong Magnetic Clips are truly awesome!

Clips work great!

Magnets are very strong and colors are bright and upbeat

Great Magnets!!!

Magnets are very strong

I also own Learning Resources Super Strong Magnetic Hooks which I have tried to hang the same umbrellas.

Not as great as the Magnetic Hooks

Anyhow, it won't break it but the great difficulty of pulling it off the wall too frequently makes this product a very poor choice for clipping shut already-opened potato chip bags, tortilla chip bags, or other

Excellent product!!

Excellent product

product outperforms all other magnetic clips at hanging heavy things on the wall, thanks to its very powerful magnet and very powerful jaws, both of which require substantial strength to operate