Pirsch ED binoculars are equipped with BaK-4 glass and the latest multi-phase coating, which allows the image to be even clearer and more contrasty in high resolution. Thanks to the BaK-4 glass material, we get a bright and clear picture. Thanks to the TwistUp eyecups, even those who wear glasses can enjoy the full field of vision. The BRESSER Pirsch binoculars have a rubber coating for a firm grip, and the wide neck strap provides extra comfort. For the full experience, these binoculars are waterproof and nitrogen-filled to prevent fogging. CHARACTERISTICS: compact and versatile binoculars high-performance ED glass high-quality phase coating for brighter and more contrasted images waterproof and ARGON flushing to prevent fogging rubberized housing ideal for wearers of +/- 4 dioptre glasses color-true image / premium ED glass waterproof and lighter filled with argon gas image thanks to the dielectric coating dimensions: 145 x 121 x 52 mm / weight: 636 g phase coating is perfect for high-contrast images for people who wear glasses *the lifetime guarantee is valid for online registration on the manufacturer's website. Click here to register!