The 1-4x24 elite 4500 features an extended eye relief; 24mm objective; side focus parallax; big eyebox to get a long 4.3" of eye relief.; low-profile and with smooth edges to prevent unwanted snags and catches; side focus parallax adjustment and exo barrier that acts like a permanent water repellent for your windshield.Magnification: 1-4xObjective: 24mmField Of View: 88 - 26 ft @ 100 ydsEye Relief: 4.30"Tube Diameter: 30mmLength: 14.10"Weight: 15.50 ozReticle: Multi-XParallax Adjustment: 100 ydsProofs: Fog/Shock/WaterproofOptic Coating: Fully Multi-Coated