This quick release adapter is designed to fit most all modern full size binoculars, including the Swarovski EL with Outdoorsmans exclusive EL stud attachment. This two part system uses a stud attached to your binocular and post attached to your tripod. Your optics are locked in with a quick twist of the knurled knob. This is by far the lightest and strongest adapter available. Call for details on the type of stud needed for your binoculars including the Outdoorsmans exclusive EL stud attacment. Can be used with brands of tripods by adding their style of 1/4×20 tripod plates. Proudly made in the USA.