This Mighty Runway Stand Base features an extra 12cm longer leg providing additional stability when it is necessary to make a boom rig. 3/8”-16 female threads on each leg offer flexibility to mount a baby pin or fixed a custom mounting plate etc. The legs designed to be folded parallel to one another for easy storage and transportation. The junior 1-1/8" (28mm) receiver accepts a C Stand riser section to make your C Stands mobile.