Leapers UTG 2-Piece Max Strength LE Grade Picatinny Rings - 18mm Width, 1" - Low SPECIFICATIONS BRAND: LEAPERS CA PROP 65: YES MATERIAL: ALUMINUM RING & MOUNT FINISH: MATTE RING & MOUNT PIECES: 2-PIECE RING & MOUNT RING HEIGHT: LOW RING & MOUNT TUBE DIAMETER: 1" RING & MOUNT TYPE: PICATINNY STYLE DESCRIPTION 4-screw Low Profile "Tiger" Ring Precision Machined From Aircraft-grade Aluminum Alloy with Anodized Black Matte Finish 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 Extensively Field Tested under Extreme Operations and Well Received by Field Experts and Law Enforcement Personnel