DEMO Swarovski AR-B Adapter Ring for Binoculars BTX/ EL Range 37.2-42.8mm Eyecup

This Adapter Ring is designed for use with binocular systems or spotting scopes from Swarovski Optik. It is easy to fit and helps connect your binoculars or spotting scope to a smartphone. It is compatible with CL Companion, EL, EL Range, NL Pure, and SLC binoculars, and BTX spotting scope.