XtraArm Tripod Adapter Mount Black. For any of our customers with an articulating arm setup you can purchase this adapter to mount to your existing tripod. As long as your tripod has a 3/8 16th male thread it will work for you Simply screw in the adapter slide your arm and spacer on then add the included tightening handle on the top and you are ready to go. Specifications for XtraArm Tripod Adapter Mount: Manufacturer: XtraArm Color: Black Fabric/Material: Aluminum Package Contents: XtraArm Tripod Adapter Mount XtraArm XTRA-TAM: Tripod Adapter Mount Black