Kelbly scope rings are some of the most precision-made rings available. They are CNC machined from solid bars of aluminum, resulting in matched sets. These exacting tolerances make Kelbly rings the number one choice of benchrest shooters. All Kelbly rings are designed to mount on Stolle Dovetails or Davidson bases (see Davidson listing below). Available in single screw and double screw models, bead blasted or matte black (anodized) finish. All rings are sold as pairs. Kelbly rings are available in three heights to accommodate most shooters requirements: Short: Designed for mounting scopes on varmint rifles or hunting rifles using Davidson bases. Gets the scope closer to the center Mfg: Kelblys Inc.