Eschenbach Arena 10x25 F+ BinocularsThe Eschenbach Arena 10x25 F+ Binoculars are a great starter model for nature observation. Compact, light, and foldable, the Arena F+ binoculars can be easily stored away in small pocket. The size, however, does not compromise in terms of performance. The ocular system features fully coated BaK 4 prisms for bright, clear views. The housing is waterproof, and nitrogen filled for fogproof permornace so the Arena binoculars are built to withstand the