3 different formulations :

Metal and Teflon for CD and DVD players and turntables	4 plates	53,60 euros
Metal and Polymer for Amplifiers and Preamplifiers	4 plates	53,60 euros
Metal and Polymer2 for Speakers	6 plates	80,40 euros

We can't live without these! 
Every single time, the improvement is breath taking!

Try them out, no risque. Full refund if you are not blown away by the change.