The Swarovski EL Range Forehead Rest is all about comfortable, custom, and care-free observations. Even for short sessions out in the field, you will feel the difference with this form-fitting forehead rest from Swarovski. By relieving the pressure from your hands and steadying the binoculars, you will be able to use your EL Range optics for longer. They are built around a stable and secure three-point support system, with a tactile knurled adjustment dial to align your eyes properly with the eyepieces. It attaches to the focusing wheel in place of the battery cover, but then replaces this function to ensure full functionality of your EL Range binoculars.