atabites and/or other speaker fillers

I recently researched an Atabites product available at [url]http://www.atacama-audio.co.uk/prod-f.htm[url\] and I want your opinions.

I found out that these triangular shape high density steel chips are magnetizable. Can they affect the speaker drivers and the voice coil by embedding an additional magnetic field within certain period of time? I believe that the speaker curve or the coil responce might change...

I also want to discuss whether the monitor stands from ferromagnetic substance are OK for the speakers as well.