These MotorGuide mounting disconnect switches absorb shock to protect electronics and ensure the most reliable performance. These mounting insulators provide effective cushioning and absorb vibration and impact, so electronics are not exposed to this potentially harmful energy. These durable mounting disconnect switches contain long, corrosion-resistant screws. This is a set of four mounting cutting discs. Motorguide has been dedicated to designing and manufacturing innovative trolling motors and accessories for over 50 years. With pride, Motorguide sets the standard for the most accurate PinPoint® GPS system and the quietest engines, providing anglers with precise propulsion for superior boat control.