Detailed Product Description Binger Excel series BINOCULARS Brightness, clarity and resolution due to excellent optics desing. This series are our best binoculars for the time being, this series can use ED glasses. Features: 1. BAK -4 roof prisms for bright, clear, crip viewing 2. Extremely durable and lightweight housing of magnesium alloy, an aerospace material 3.Fully multi-coated optics for ...