Bought these from one second closer as I remember a couple of years ago. kept the ones I used in my modded watches and these have not been used (they have been tested several times, but never used)  The Bezel fits all Vostok Classic cases and includes the tension spring. The bezel inserts fit the bezel and also fits all Seiko SKX 007 bezels. All bezel inserts are aluminum.   Selling all for $55. PayPal or Venmo, shipping to CONUS only with tracking and Insurance included.   I can sell bezel alone for $25 and $10 for each insert separately. Buying the whole set saves you $10 and saves me time.