Silk Pro Ball Head Tripod Accessory: This professional tripod accessory swings, swivels, tilts, and locks securely, and is made of strong steel to hold any weight camera. It has a 1/4" camera screw and a 3/4" tripod mount socket/port. If your tripod has a 1/4" camera screw, you can acquire a simple step down adapter, avvailable at any camera store.