banjira 42 Inch Deluxe Tanpura Flat Back 4 String & Gig Bag . banjira 42" Deluxe Tanpura Flat Back 4 String & Gig Bag. Beautifully carved and inlaid. The flat toomba creates a more simple profile, and is not as delicate as the traditional gourd toomba. It is therefore easier to transport. It may be smaller, but you get the same traditional tanpura sound. Includes nylon gig bag case.