The Stack Tackle Screwy Head Jig is a patented interchangeable jig head system that lets you change head weight, and color in seconds without cutting your line or re-rigging your soft plastic. Its precision screw-on design with a locking O-ring keeps the head securely in place, while the unique line tie transfers all fighting pressure directly to the hook, preventing the head from loosening during the fight. Built for versatility, the Screwy Head Jig is perfect for targeting both freshwater and saltwater species.