This is the HS-755MG Quarter Scale Metal Geared Dual Ball Bearing Servo from Hitec.

FEATURES: Metal geared Dual ball bearing output spline Water and dust tight Designed for use in large models

INCLUDES: One HS-755MG giant dual BB servo with Hitec/JR/Z tupe connector One servo accessory package containing: One 1" (26mm) single arm servo horn(pre-installed on servo) One 1.3" (33mm) single arm servo horn One 2.3" (58mm) dual arm servo horn One 1.7" (43mm) diameter servo wheel One 2.8" (71mm) dual arm servo horn Four brass eyelets Four servo mounting screws Four rubber grommets

REQUIRES: Installation

SPECS: Length: 2.32" (59mm) Width: 1.14" (29mm) Height: 1.96" (50mm) Weight: 4.12oz (117g) Speed: .28 sec/60° @ 4.8V, .23 sec/60° @ 6V Torque: 166.64 oz in (12kg.cm) @ 4.8V, 199.97 oz in (14.4kg.cm) @ 6V

COMMENTS: This servo directly replaces the HS705MG servo from Hitec. wm 8/29/06  

BOX DIMENSIONS: 2.50" W. X 2.00" H. X 3.75" L. BOX WEIGHT: .33 LBS.