The perfect item for the photographer who needs stability when shooting from an automobile. This Manfrotto Car Window Pod is used for attaching either 482 or 234 head to a window or narrow sill. Attachment screw is 3/8". Ball head not provided. Attachment: 3/8'' screw; clamp range - max (rectangular tube): 0.51 in.; color: black; material: aluminum; weight: 0.40 lbs.