This was a set of Valid Points Resonance Control kit that was used with the Wadia 861 CD player. It comprise of three 2″ cones, three 1/2″ resonance disc and one 1″ control disc. The three 2″ cones were mounted under the CD player and the three 1/2″ resonance disc under the cones. The larger 1″ control disc was then mounted above the CD transport mechanism. Previous owner said that after installing the Valid Points Resonance Control kit, music tighten up a bit more and had better overall definition. Cosmetically, there are some paint peel on the discs and some oxidation on the cones (could be polish off) which are common for accessories like these. Worth a try for just $250 now!