This type of Russian visa is the cheapest and the easiest to get. 
  A Tourist visa is valid for one entry (in some cases it's possible to get a double-entry Russian visa). 
              Period of stay in Russia: up to 30 days. Extension is not possible! 
              Visa Invitation: Tourist Invitation (two documents: Voucher and Confirmation) issued by a Russian tourist company which has a so-called Tour-Reference number at the Department of Consular Service of the Russian Ministry of Foreign Affairs. 
  Consulate may request additional detailed information about your journey in Russia: this called the Traffic-Voucher. 
              
              
  Terms and price for the Visa Invitation: Depends only on the tourist company. 
              
                Terms and price for issuing a tourist visa at the Russian Consulate: Specific for each Consulate. Usually the Consular fee is not high, but the procedure takes longer than processing a Business visa.