F2 Crawfish Spray Attractant. The YUM Baits Crawfish Scent 4 oz. Biological Enzyme Attractant Spray allows you to super charge any soft bait with its proven fish-attracting power. The spray is the quickest way to start a feeding frenzy! This portable, easy spraying 4 oz. bottle is the perfect item to bring along with you in your tackle box.. Features Super-charge any soft plastic bait; Proven fish-attracting power; Handy 4-oz bottle for easy storage and use; Bottle is easy to take along and apply; Biological and natural enzyme attractant; Stimulates live prey; Masks fish-repelling odors; Specifications Capacity: 4 oz; Bait Type: Spray; Fishing Type: Freshwater Fishing; .