YUM is made with exclusive Live Prey Technology, which simulates the release of live-baitfish enzymes. YUM creates a feeding frenzy in anything that swims. Unlike other soft plastics that just imitate those substances found in baitfish, YUM plastics give a replication of the scents and flavors present in prey when they’re panicked or struggling. Plus, it masks other smells not associated with baitfish or live bait.