Quality you can count on! The Vortex name is the one to trust when it comes to all things optics. Put your scope in the hands of these Rings today. High rings: 1.22"h.; Medium rings: .87"h.; Low rings: .63"h.; Construction: T6 aluminum; Tube size: 1"; Rail: Picatinny/Weaver type; Mfg. Number: High (RING-H), Medium (RING-M), Low (RING-L); Note: Height is measured from the base to the center of the riflescope. Vortex Hunter 1" Rifle Scope Rings