Overview: This scope bubble level is designed for shooters who need precise optic alignment during outdoor, range, or home use. It ensures your rifle remains perfectly level for accurate long-range shooting, featuring quick installation and a compact design for easy storage and transport. Product Details: Crafted from durable aluminum alloy, this bubble level provides reliable performance and sturdy clamping. It fits both 20mm and 11mm Picatinny or Weaver rails, allowing fast, tool-free attachment to your rifle’s scope tube. The level helps maintain consistent aim by ensuring your optics are properly aligned with the target. Key Features: 1. Quick & Easy Leveling – Rapidly level your optics outdoors, at the range, or at home for improved shooting accuracy. 2. Convenient & Portable – Compact design allows easy storage and transport, ideal for long-range shooting sessions. 3. Universal Rail Fit – Compatible with 20mm and 11mm rails; installs quickly and securely without tools. 4. Enhanced Shooting Stability – Ensures your rifle stays level for more consistent target engagement. 5. Secure Mounting – Attaches firmly to the scope tube, providing a stable and reliable reference during use. Specifications: Material: Aluminum Alloy Clamping Size: 20mm (0.79 inch) / 11mm (0.43 inch) Package Includes: 1 x Scope Bubble Level Note: Please allow 1–2 cm measurement variance due to manual sizing. Slight color differences may appear due to monitor variations.