Peak Design Universal Head Adapter Black. Ideal for users who require special tripod head functionality like fluid pan and tilt for video. Simply replace the Compact Ball Head with the Universal Head Adapter (using included hex wrench) and then screw your 3rd party tripod head on top. Works with our without the Travel Tripod center column. Specifications for Peak Design Universal Head Adapter: Manufacturer: Peak Design Color: Black Weight: 3 oz Height: 3.11 in Features of Peak Design Universal Head Adapter Enjoy the compactness and stability of the Peak Design Travel Tripod with any 3rd party tripod head Uses universal 0.375 inch threading Works with Carbon and Aluminum Travel Tripod models Installs quickly using 4mm hex-drive screw (hex wrench included) Package Contents: Peak Design Universal Head Adapter 1 Hex Wrench 1 Microfiber bag large 1 PD sticker Peak Design TT-AD-5-150-1: Universal Head Adapter Black