The Magview B1 Binocular Adapter offers a unique way to enhance your outdoor experiences by effortlessly transforming your binoculars into a powerful digiscoping tool. Designed for eyepiece sizes 38.5mm-43mm, it includes a binocular adapter, sizing spacer, and phone plate, ensuring a universal fit for various binocular models. Its lightweight and compact design won't interfere with your binocular use, allowing you to capture stunning images and videos without the burden of bulky phone cases. Made in the USA, this adapter is an essential addition for those seeking to document their adventures. Magview B1 Binocular Adapter Features: Universal Fit: Compatible with multiple binoculars. Lightweight and Compact: Integrates without obstructing binocular use. Seamless Digiscoping: No bulky phone cases required. Effortless Installation: Simply slip onto the eyecup and tighten the retaining screw. Includes: B1 Binocular Adapter and MAGVIEW Phone Plate for optimal performance.