Warne 1in Permanently Attached Medium Rifle Scope Rings are stylized, lappable and engravable. Maxima series rings are designed to mount on Weaver style and picatinny bases. The finish uses a powder coating process that is used by Zeiss and Nikon on their scopes. The rectangular stainless steel recoil key is unique and has proven reliable under recoil. Specifications for Warne 1in Permanently Attached Medium Scope Mount Rings: Manufacturer: Warne Finish: Matte Ring Height: Medium Tube Diameter: 1 in Ring Quantity: Pair Ring Type: Ring Set Fabric/Material: Stainless Steel Size: Medium Condition: New Color: Black Features of Warne 1in Permanently Attached Medium Scope Mount Rings: Permanently attaches to base. Square recoil control key for positive engagement of ring to base. Rings securely mount around scope using 4 Torx style T-15 socket cap screws, 25 in/lb. of torque recommended. Package Contents: Warne 1in Permanently Attached Medium Scope Mount Rings * This picture above is representative of the group of items. It may not match the exact item that you are looking at. Please make sure to read the description of the individual item.