This phot r gopro kit for the gopro hero allows it to be installed on a flash hot shoe dslr camera tripod and any mounting accessory that features a 14 20 screw the hotshoe adapter includes 2 nuts which can be adjusted the phot r thumb screw for gopro hero allows you to attach your gopro hd hero to any gopro accessory that accepts the thumb screw it is one of the essential pieces of gopro equipment keep spares around or purchase to replace lost thumb screws the phot r tripod adapter f