The ring is for most scopes which are in 1''/ 25.4mm scope tube.
Precision machining from aircraft-grade aluminum alloy, solid and sturdy construction.
Built-in tape inside per rings to prevent from marring the scope, also prevent sliding and holding postion accurately.
With two rail clamp screws and two scope clamp screw per side, Precision and Repeatable Alignment.
Specification:
Rail Type: 11mm Dovetail Rails
Ring Diameter: 1''
Material: High Quality Aluminum Alloy
Style: High Profile (0.8in)
Dimension: 1.9 x 1.57 x 0.79 inch