Berkley Gulp! Saltwater Soft Bait Fishing Lures are made from a biodegradable material that absorbs the Gulp! Scent and releases it with over 400% more power than real baits. Gulp! Saltwater Baits are available in many different styles and sizes suitable for all species of fish. Berkley Gulp! Soft Baits will out fish real baits and will last longer catching multiple fish with a single bait. Gulp! Baits do not need refrigeration and can be kept in you tackle box for use when needed.