Manfrotto 325N 325N Video Head Adapter Bowl Interface (Black)
Adaptor kit to connect a 75 or 100 mm half bowl video head to a flat base tripod.  head bowl : 75/100mm head bowl diameter  color : black color  material : aluminum material  attachment (top) : 3/8-Inch female thread attachment type  attachment (bottom) : 3/8-Inch female thread attachment type  weight :.97lbs.