Bushnell Legend Roof Prism 8 x 32 Realtree AP Camo Binocular PC-3 phase-coated BaK-4 roof prisms, Locking Diopter Fully multi-coated optics allow maximum light transmission for optimum brightness, Heavy-duty, 100% waterproof / fogproof construction Rainguard, water-repellent lens coating, Long eye relief , Twist-up eyecaps allow quick adjustment for optimum eye relief Large center focus knob for precise focusing - even when wearing gloves, Trim, ergonomic shape for easy, all-day use Textured, non-glare, non-slip rubber armor absorbs shock, Knurled diopter adjustment for precise and reliable adjustments