Swarovski FRR Forehead Rest for EL Range with Tracking Assistant

You'll enjoy extended observation sessions much more with this FRR Forehead Rest, an accessory for the Swarovski EL Range Binocular with Tracking Assistant. Even for brief glassing, the forehead rest improves your experience by taking some of the pressure off your hands to steady the binocular for a shake-free image. Turn the knurled adjustment knob to align your eyes properly with the eyepieces. The forehead rest attaches to the focusing wheel in place of the battery cover, whose function it replaces.