Staoptics Binocular Tripod AdapterThe top 1/4 inch thread connects to any binoculars that can be mounted on a tripodThe 1/4 inch x 20 standard thread on the base can be directly mounted on most tropods and car window glass bracketsDirections: Connect the Binoculars Connect the adapter Fastening nut Connect to a tripodCompatible with any binocular that accepts 1/4" x 20 standard thread.