Dunlop Heavy Core Bass Strings are for players who want to down-tune while maintaining a comfortable standard string gauge feel. Dunlop Heavy Core Bass Strings deliver big punchy lows, articulate mids, and crunchy highs. Each Heavy Core set is optimized for alternate tunings. Dunlop Nickel Plated Steel Electric Bass Strings are constructed of the finest materials. Designed to meet the demands of electric bass players, Dunlop Strings provide consistency, durability and versatility to bass players of all styles of music and all playing styles. With Dunlop Bass Strings minimal break in times will be experienced so you get the sound you desire quickly. Dunlop Bass Strings also have a long life so you can keep on playin!