The 15x70 X-Trail Binocular from Barska is a larger binocular designed for long distance or astronomical viewing. It has a traditional Porro design with BAK4 glass and fully coated optics; creating a viewing experience of clarity and high contrast. The large 70 mm blue tinted objectives combined with the high magnification of 15x will make the Pleiades and the Beehive Cluster sparkle. Rubber armoring with indented finger holds provide a protective non-slip grip and added protection for the housing and internal optics. Coupled with its wide-angle FOV, this binocular is a great choice for viewing a perched falcon or the moon's craters.