Bushnell designed its 10x42 All-Purpose Binoculars for hunters and shooters who value simplicity, stability, and results. The All-Purpose binoculars feature multicoated lenses and BaK-7 prisms for bright, clear viewing. An ergonomic design and center focus wheel get you on target and fine-focused in an instant. Twist-up eye pieces accommodate eyeglass users. The All-Purpose Binoculars are nitrogen-purged to resist fogging.