The case is made from aluminum and the center is hard anodized black. Dimension are 11.5 x 7.5 x 4.5. With harmonicas, case weighs under 10 pounds. All the corners are riveted on all three sides. The corner protectors are chromed steel. The inside has a 1/8 inch layer of High Density foam. There are 4 rubber feet on the hinge side. The plexiglass dividers are moveable, easy to cut and interchangeable. This allows the harmonica player to configure the case to meet his/her specifications. If you purchase extra dividers, you can customize the case to have more than one configuration. The case is engineered to tightly secure your harmonicas and gear without rattling or shifting. You will have no problem fitting 12-16 hole chromatics, diatonics, turbolids, XB-40, Bullet Mikes and even little amps! CLICK HERE TO PLACE YOUR ORDER!