The Oberwerk XL Fork Mount was designed to be an extra-sturdy and smooth mount for our XL Series Binocular Telescopes. Available in two sizes- 240mm width for the BT-100XL-ED (and smaller) and 280mm width for the BT-127XL-SD. Constructed from black-anodized aluminum with red-anodized trim, which matches the red trim on the XL Series binoculars and eyepieces. The binocular attaches with a single captive 3/8″ hand-screw, while two spring-loaded pins keep the binocular from twisting on the mount. Adjustable rubber bumpers are included that prevents your binocular from contacting the mount when pointed to zenith or below the horizon. The XL Fork Mount is designed to attach directly to a TR3 Hardwood Tripod equipped with a bayonet lock ring, for easy tool-free attachment/detachment. For use with other tripods, such as the Manfrotto 161MK2B, a bayonet adapter is available.