ITW means that the harp is assembled but not sanded. There is usually quite a bit of sanding to do to make the surfaces smooth as well as minor shaping of the flowing lines of the wood. The more work that you put in this part of the project, the better finish you will have. Yuu may want to decorate or wood burn designs on the harp After sanding, you need to apply a finish, put on the hardware, put on strings, and tune.

ITW is a good choice for people who want to personalize their harps but do not want to do all the gluing, fitting, assembly, and shaping of wood involved in the basic kit.