24 Poster Pack. Brighten up your music room with these attractive full-color laminated 9“x12” posters featuring the instruments of the orchestra. Each instrument in the four orchestral families - strings, woodwinds, brass, and percussion - is featured on the front of the poster while the back includes history of the instruments, “fun facts” and representative musical works featuring the instruments. You'll find dozens ofuses for this handy resource, including bulletin boards, class discussi ons, activities and much more! For all ages.