Berkley GSS4-SMLT Gulp Shaky Shad Bait, Smelt, 4-Inch This Gulp shaky shad is the ideal reaction bait for bass, walleye and other predator species It features a vibrating tail action, lifelike detail and top to bottom color lamination Gulp baits release 400 times more scent than regular plastic baits It looks, feels, and swims like a live shad Available in smelt color; measures 4-inch size