Material: Aircraft grade aluminum alloy with solid matte black anodized finish and heavy duty construction. EASY TO USE - With four screw design, it will hold the scope more securely than screw on both sides and easy to use for indoor or outdoor hunting and screaming. It also prevents it from slipping and holds the position accurately. Premium Material - Scope Rings Type, Double Scope, Medium Profile (0.55mm), Fit for a 0.22 Rifle or Air Rifle with a 3/8 Inch 1 Inch Diameter Dovetail Mount and Weight Only 2.4 oz. Package Includes: Package includes 2 sets of scope rings. Each pack has 2 units. Includes 2 units in each package. Why choose us? 360 Tactical offers you a lifetime warranty on this medium profile rifle. It is a unique product and we provide 100% satisfaction with high quality and 24/7 customer service.