Bob Toman Thumper Flex Squid. UV Salmon trolling squid spinner with chain swivel rigging. Unique chain swivel body resists bending. Available in NEW 6-1/2 high vibration Thumper blade. Durable powder coated finish. Bearing washer for easy spin. Pre-sharpened corrosion-proof hook. Available in 2 sizes and 14 colors.