Eagle Manufacturing Whip Retaining Hook. Recommended for use with Super Duty or Heavy Duty Whips 8' and longer using a Barrel Spring at the base for best results. A Whip Retaining hook will attach to your vehicle and allow you to secure your whip to your vehicle; and is recommended for Super Duty and Heavy Duty whips 8? with with a spring for bending it down to secure to whip retaining hook which is attached in a location on your vehicle., Eagle Manufacturing Safety Whip Retaining Hook - Product Weight: 0.08 lbs (0.04kg)