This is the Horn/Hardware Set for the Hitec HS-65 Servo. FEATURES: Plastic and metal construction INCLUDES: (4) Lock washers (3) servo horn screws (phillips head) (1) full straight horn (1) half straight horn (1) cross horn REQUIRES: Installation onto servo SPECS: Length of full straight horn: 35mm (1.38") Length of half straight horn: 25.4mm (1") Length of cross horn: 24mm (0.95") mlm 8.03.06 ir/jxs