Tube Diameter: 30 mmRing Height: HighAdditional Features: 2-PieceSize: 22mm 6-screw Medium Profile "e;Dragon"e; Ring Robust and User Friendly Ergonomic Quick Detach/Lock Lever Fully Adjustable to Fit on Any Picatinny Rail High Quality Synthetic Protective Tape Applied on Rings Internal Surface Tight Tolerance Control and Repeatable Positive Locking for Optimal Re-zero Performance Precision Machined From Aircraft-grade Aluminum Alloy with Anodized Black Matte Finish Extensively Field Tested under Extreme Operations and Well Received by Field Experts and Law Enforcement Personnel