Leupold’s famous rotary dovetail rings in BOTH front AND rear bases; there’s no way a ring can shoot off its base. Ideal for large caliber, heavy kicking rifles that can throw a scope off easily, plus light caliber varmint rifles that need an absolutely rigid scope mount to make full use of the gun’s accuracy potential. Dual Dovetail Rings must be used together; will not interchange with other Leupold rings. Heights from Low for small scopes to Super High for giant objective bells. Sold in Pairs. SPECS: Steel. Finish: PB, polished, blue; Matte, matte, blue; Silver, matte. Height is from top of base to center of rings.