Just like the original Pro Guide Formula this is a gel based fish attractant that stays on baits very well. They have added UV coloring and glitter for visual enhancement. A single application lasts up to several hours, takes the scent below the surface where it belongs. Works on all baits and lures. The Success rates 200-300% better than other plastics. Non-toxic, bio-safe scents are very easy to apply. Comes in 4 oz jar.