Berkley Lab Series Flat Worm - Lab Series was created by Berkley scientists to trigger bites via the four primary proven feeding stimuli: Color. Action. Scent. Taste. Small-batch poured and coated with new water-activated Rapid Release PowerBait MaxScent Slime proven to generate unmatched results from the moment it hits the water. This new formulation gives anglers the world's only scientifically-proven scent and taste delivery systems, in a layered construction that allows for unlimited color and action. Scientifically engineered to trigger bites: via the four primary proven feeding stimuli -Color. Action. Scent. Taste.; Proven in the Lab for confidence on the water: small batch, precision layered construction fuses the best of our fish-proven formulas together in one bait.; Unlimited Color and Action: Lab Series(TM) delivers scent dispersion and taste without compromising color and action.; Rapid Release MaxScent Slime: coating activates on contact with water for immediate scent dispersion.; Flat Worm profile with purpose-driven action: bite sized morsel that imitates forage bases from Goby to Threadfin Shad.;