Features fully multi-coated lenses, BAK-4 Prisms and lead-free Glass Heavy-duty 100% waterproof/Fog proof construction Large center focus knob and 3-step twist-up eyecups Textured, non-glare, non-slip rubber Armor absorbs shock 8x magnification; 300' field of view; 10' close focus; weighs 38.1 ounces