Anyone tried using magnetic ceramic frag holders?

[Labridaedicted]

I've seen these in various places and wondered if anyone on here had experience with them:

https://premiumaquatics.com/products/rock-mag-junior.html?gclid=CMaa2ayXrc4CFQlbhgodMOsOZA

Was wondering how strong the magnets were. I was hoping to do a tabling across or caps on them, but am concerned they may be more for zoos and such.

Thanks!

 

[reefwiser]

They are not as nice as The Alternate Reef ceramic pieces. Check them out in our vendor section Scott is a great guy and has made me several pieces for my tanks.
https://www.reef2reef.com/forums/the-alternative-reef.131/