This is the Horn Set for the Hitec HS-755HB Servo, HRCM1371.

FEATURES: Constructed of hardened plastic, black in color All hardware required to attach servo

INCLUDES: 1.7" (44mm) diameter round horn 2.8" (72mm) straight double sided arm 2.3" (59mm) straight double sided arm 1.5" (39mm) straight single sided arm Four rubber grommets Four metal eyelets Four 2x15mm self-tapping phillips head screws