1-inch see-through scope ring set of HIGH height for Weaver rail and Picatinny scope base. Made of solid aluminum alloy with a square-shank steel cross bolt to withstand shock and recoil. Wrap-around design for exceptional clamping and centering. Fits Weaver and Picatinny mounts, rails, and bases as commonly found on rifles, pistols, and some crossbows. Works with scopes and red dot sights with a 1 main tube. High (30.30mm) center height with see-through opening. Good for mounting scopes with objective OD up to 56mm. Quick and easy to install. Clamps onto a Weaver base/rail and tightens using a thumb screw with a coin slot. Anodized matte black finish. Saddle Height: 17.60mm Mounting Width: 20.50mm (front to back) Hex wrench included Before buying these rings, we suggest you take a measurement of the OUTSIDE diameter of your scope objective end and be sure the OD (outside diameter) is no more than 56mm.