For all EL and SLC models (except 8 x 30 WB). Will double the magnification. Example: the booster converts the SLC 15x56 WB into a monocular telescope with 30x magnification. Easy to assemble. Simply ...
Swarovski Special Eyecup is made from fully-tested, non-allergenic material for all Swarovski SLC and EL models should prevent intrusion of irritating ambient light.