Our hardshell case is designed for a traditional hourglass shape style dulcimer that measures up to 37 inches in length, 6 1/2 inches wide on the lower bout and 6 inches wide on the upper bout and a body length of 29 1/2 inches. It is an extremely durable case made of formed structural foam with a durable nylon covering with a heavy duty zipper, external accessory pocket, and a shoulder strap. The lining is soft and plush. Overall outside dimensions of the case are 39″ x 8″ x 5″. This is a lightweight case that provides excellent protection. This case is designed to perfectly fit the Applecreek ACD150 and ACD200 models.