The K-RISER easily attaches directly to all slider carriages with a 3/8" thread for a secure fastening. It's bowl design in turn allows for the tripod head to be securely tied down. With its dual size (75mm & 100mm) bowl, users now have the perfect platform to add a 75mm or 100mm Fluid / Tripod Head to their slider set up, instantly adding two more axis of direction.