Hammers 1" X 40mm Rings Silver 1" See Thru Weaver Tall High Riflex 40mm Ring Set Silver Chrome, Anodized Matte Silver Chrome Finish Fits 7/8 inch Weaver mounts, rails and bases as commonly found on rifles, pistols, and some crossbows High (30mm) center height. Good for mounting scopes with objective OD up to 60mm Made of solid aluminum alloy to withstand shock and recoil Anodized Matte Silver Chrome Finish Works with scopes, Red dot sights with 1 inch main tube