Which rings do i need?

[Bill Allen]

I know exactly nothing about scopes or rings but I recently bought two centerfire rifles and need to get them ready for the range and ultimately to hunt with. One is a pre 72 Sako rifle. When I bought the rifle I also purchased a pair of rings separately with it and it didn't occur to me at the time that they could be the wrong rings for the rifle. The rings are 26mm. Now, what does that mean? Do I have low, medium or high rings? I plan on putting on something like a 3x9 scope on the rifle. Are these the rings I should use or is there something else I should be considering? I am kind of lost on this subject so all help is very much appreciated.