The C10A case fits our D10, Prelude and Apprentice models and is a great economy case option. It's made of protective chipboard with a black vinyl coating on the outside, with a plush cushioned lining and an inside compartment for storing legs, hammers and tuning wrench.
This is not a rigid case of the sort you would need to protect your instrument in the cargo area of an airplane. The material is flexible, like an inexpensive guitar case, and won't stand up to that kind of rough treatment, but it will do a fine job of protecting your instrument during day-to-day travel situations.
The C10 case is a more deluxe option for our 12/11 dulcimers.
Note: Extra shipping charges may apply due to the size of the case.