This is a pianica case ^_^ It's a single-layer construction using quilting. Bias tape is used for the inner thread and has been treated. There are black specks on the inside of the quilting, but they are from the cotton material and are not stains. It opens and closes with a snap. The size of the bag part is 53 cm wide, 20 cm high, 8 cm deep, and 45 cm at the bottom. A 32-key Suzuki pianica will fit, including the hard case. This is a handmade item. It is not perfect like a mass-produced product, with some stitching irregularities and distortions. Please understand this before considering a purchase. Thank you! #PianicaCase #PianicaBag #Checkered #Simple #Quilting #Quilt Pattern/Design...Checkered Type...Pianica Case