Sig Zulu Binocular Adapter is for use with tripods or window mounts. Compatible with ZULU10 HDX, ZULU8 HDX, CANYON HD, Buckmasters binocular, KILO10K-ABS HD, KILO6K HD, KILO6K HD Compact and CANYON. Rangefinding binoculars and other binoculars compatible with a 1/4"-20 socket thread. Features threaded lock down, allows user to tighten binocular stud to prevent rotating; Arca-Swiss Base with 1/4"-20 threads for universal mounting.