The SunwayFoto DYH-90i Leveling Base features a 3.5" diameter base that supports very large loads up to 33 lbs, making it appropriate for large-format still cameras and full-sized video cameras. The base tilts up to 17½ in any direction and features a removable offset bubble level that tells you whether your shot hews to the horizon. It has a 1/4"-20 screw at the top and 3/8"-16 thread at the bottom, for direct attachment to many tripods. Completely constructed of metal (including the control lever), the leveling base weighs just 1.1 lbs.