Made to clamp securely on overhead grids, car rigs, or camera car rails for mounting light fixtures. The Baby Grid Clamp can also be inverted with the pin mounting into a Grip Head for spanning pipe between two stands. Clamp will grip a pipe having a minimum diameter of 1-1/4″ (1.660) OD and a maximum diameter of 1-1/2″ (1.990) OD.