The New Leupold Open Range Cross Slot weaver style scope rings were designed and build right here in the USA. Constructed from high quality aluminum and utilizing a hard coat anodized finish these rings are durable and gorgeous. The ring come in pairs and comes with the required screws for fastening to the rail and securing the scope to the saddle. Leupold continues to deliver mounts with a traditional look, using modern manufacturing techniques in order to provide you with a rock solid connection between your scope mount and scope. Leupold Open Range Cross Slot Weaver Style Scope Rings (Black) Specifications and Features Leupold Item Number 180948 Open Range Cross Slot Weaver Rings 30mm Tube Diameter High Height Aluminum Construction Matte Black Note:Weaver Rings will fit both Weaver Rails and Picatinny Rails.