1. Accurate Ranging Solution: The Rangefinder Card Allows You To Easily Measure Ranges Up To 900 Meters Without Electronics Or Gps. This Portable Slide Rule Calculator Provides Precise Measurements To Enhance Your Shooting Experience. 2. Compact and Lightweight Design: Weighing under an ounce and sized for a BDU pocket or binocular pack, this ballistic calculator is designed for convenience. Its slim profile ensures it seamlessly fits into any sniper accessories kit, making it ideal for hunters on the go. 3. Enhanced Instructional Tool: The Range Finder Card serves as an instructional resource for developing the 'eye' for ranging. Ideal for students and enthusiasts alike, it aids in intuitive ranging techniques, thereby complementing your sniper accessories training. 4. Versatile Reticles: Featuring six reticles including Man (1.8m), Door (2m), SemiTruck (3.5m), and more, this slide ruler provides versatile options for various hunting scenarios. It's for crossreferencing object heights while utilizing your rifle scope accessories.