The K&M 12450 Uni-Boy “Classic” in green is a set of 12 durable, lightweight page holders designed to keep sheet music, books and manuals securely open on desks, tables or music stands. Easy to clip on and gentle on paper, they prevent unwanted page turns during rehearsals, lessons or performances. Ideal for schools, teaching studios and ensembles, this practical green 12-pack offers a long-lasting, reliable solution for maintaining clear, stable readability.