Gator Cases Light Duty Keyboard Bag for 88 Note Keyboards & Electric Pianos (GKBE-88). Rugged Nylon gig bag fits 88-note keyboards. Simple envelope-style bag for entry level portable keyboards. Interior Dimensions: 59″ x 19″ x 5. The Gator Cases GKBE series economy lightweight keyboard gig-bags provide the perfect protection for storing or transporting your keyboard at home or between gigs. The GKBE series economy keyboard gig-bags sport a rugged nylon exterior and a nylon webbed carry handle. The economy keyboard gig-bag also features 5mm padded lining that provides light protection for the keyboard against dings and scratches. This is the perfect keyboard bag for providing protection between local gigs and ...