Description 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.PRODUCT DETAILS:LOW RING:Center Scope Height .63 inches (16.0 mm)Weight (per ring) 44 grams (1.55 oz)Mount Compatibility Picatinny and WeaverMEDIUM RINGS:Center Scope Height .87 inches (22.0 mm)Weight (per ring) 39 grams (1.37 oz)Mount Compatibility Picatinny and WeaverHIGH RINGS:Center Scope Height 1.22 inches (31.0 mm)Weight (per ring) 34 grams (1.19 oz)Mount Compatibility Picatinny and Weaver