Kala UBASS-RMBL-FS Bass Ukulele Concert Ukulele Bundle with Hard Case, Gig Bag, Tuner, Polishing Cloth, Extra Strings and Stand Save with this bundle. Package includes: Kala UBASS-RMBL-FS Bass Ukulele Concert Ukulele Bundle with Hard Case, Gig Bag, Tuner, Polishing Cloth, Extra Strings and Stand Mahogany back and sides Custom Die-Cast Tuners Kala electronic system with an active EQ and built-in tuner Kala Silver Rumbler Strings