Mounting to a Picatinny or Weaver type rail, the standard 2-screw Hunter rings are a nice match for general hunting setups. Made from aircraft-grade 6061-T6 aluminum for optimum strength. Available in three heights for 1 inch tubes. We do not recommend the Hunter Rings for use on heavy recoiling rifles.Specifications and Features: Finish: Matte Ring Height: Low - 0.63 in Tube Diameter: 1 in Gun Model: Universal Ring Quantity: Pair Quantity: 2 Ring Type: Ring Set Fabric/Material: 6061-T6 Aluminum Condition: New Weight: 1.55 oz Color: Black Mount Type: Weaver Attachment Type: Picatinny, Weaver Height: 0.63 in