BKL 1" Rings, 3/8" or 11mm Dovetail, High, Double Strap, Matte Black Matte black 1" rings High rings: .974" from bottom of mount to bottom of scope tube Fits 3/8" or 11mm dovetail Double strap (4 screws per cap instead of 2, 2 screws per base instead of 1) Patented auto-centering design Made in the USA