Rings come in a set of two.  These rings are cerakoted

Rings Heights are as follows, as measure from the contact point of the base to the center of the ring, does not include the height of the picatinny rail.

30MM High - 1.275 inch... 30MM Extra High - 1.440 inch

34MM High - 1.275 inch..... 34MM Extra High - 1.440 inch

Dark Earth Finish shown in photo

BAT306H, BAT306X, BAT346H, DET306H, DET306X, DET346H