The Manfrotto 438 Compact Leveling Head provides fast leveling for tripods without built-in levels. It fits between the center column and head and has 10° range of adjustment.
Features a 1/4" socket at its base, and a 3/8" screw at its top.
Three anti-twist screws prohibit unwanted rotation of tripod head, camera or other attached device

suitale for:
350MV
351MV
515MV
525MV
532ART
542ART
117B
528XB