Foredom S-77 Sheath for Most Motors, 36-¼” Long, Standard. This 36-¼” long, neoprene material outer sheath comes equipped on Series LX motors. Neoprene sheathing is more flexible than our standard sheathing material. Use with S-93 key tip inner shafts sold separately. Exceptions- Cannot be used on these motors: Discontinued EE, GG and MMG motors, Discontinued F, JJ and JB motors,975, 980W, 981W motors.