If your trip is planned for up to 30 days, choose a single (or double) tourist invitation. If you would like to visit Russia several times or over 30 days – choose business invitation for six months or for one year. For most Russian consulates it’s enough a copy of invitation (for Europe, US, Canada, Australia, New Zealand, Japan, China and others). Business invitation letters is appropriate only for EU, US citizens and some others. For UK citizens we can give FMS electronic invitation. (business invitation letter is not appropriate for UK by Russian Consulate rules).