91058-MG9-681 Self-Lock Band - Overview. The 91058-MG9-681 Self-Lock Band is a specialized OEM part designed to support Honda marine rigging and accessory systems. This self-locking band plays a critical role in securely fastening components, providing reliable clamping that ensures operational integrity in demanding marine environments. By maintaining tension and preventing slippage, it helps keep your Honda marine equipment running smoothly and safely, even under conditions of vibration and ex