1 Zee Rings - High NickelManufacture ID: 420086Burris rings and bases have long been favorites of custom gunmakers because of their strength beauty and fit. It"s easy to recognize Burris" leadership rolein scope mounting systems when you consider the myriad of innovative designs and manufacturing processes that result in rock-solid performance. Each ring is made from a solid piece of steel with the top and bottom half perfectly mated. Zee rings with nomoving parts are the best fitting and most positive gripping Weaver-style ring made. 1 Zee Rings High NickelWarranty: Burris warrants every product to be free of defects in materials and workmanship for life even if you are not the original owner.They will repair or replace any product if examination reveals a defect.