Product Description 1. Professional Scope Leveling Kit: This scope mounting kit includes one scope level for securing the clamp, two reference levels for placement on rails or open turret covers of the scope, and one Allen wrench for adjusting the scope leveling kit. All accessories are designed for scope leveling, ensuring accuracy. 2. Higher Precision: The upgraded scope leveling kit has a calibration distance of 10mm and clearer graduations, making level bubble measurements more accurate and effective, reducing operational errors. All scope levels undergo rigorous inspection before leaving the factory. 3. Adjustable Magnetic Attachment: The scope level features an adjustable knob that easily attaches to devices with a maximum diameter of 1.97 inches (approximately 5 cm). The reference level has a strong magnetic base for secure placement. 4. Aluminum Alloy Protective Silicone: The scope leveling kit is made of durable, smooth-to-the-touch aluminum alloy. The internal scope leveling kit features rubber pads to effectively prevent scratches on your expensive equipment.