Includes: Scope Ring Set, Screws, Thumb Screws Materials: 6061 Aircraft Grade Aluminum Finish: Type III Compatibility: 1" Scope Tubes Weight: 6.5 oz Color: Black Warranty: Lifetime The Monstrum ZS320 scope rings are dedicated scope rings for the Dovetail (11mm/3/8 inch) mounting platform. They are not compatible with other dovetail formats, Weaver, or Picatinny platforms. Dovetail rails are commonly found on air rifles, air pistols, and select model .22 rifles. The scope rings are 1 inch in diameter and are compatible with standard 1 inch tube rifle scopes. The high profile design with see-through base allows for the use of iron sights without removal of the scope. All Monstrum mount and accessory products come with a lifetime guarantee.