When fishing for crappie, bluegill, bream, and perch, Berkley's Gulp! Hellgrammites have lifelike detail that mimics these species' natural prey. Made from all-natural ingredients, these baits are 100% biodegradable. Soft and durable, Gulp! Hellgrammites come swimming in Gulp! Alive! scent to boost attraction and realistic texture, keeping fish locked on after they bite. Gulp! Alive! baits are 100% biodegradable.