The K&M 12450 Uni-Boy “Classic” is a mixed 22-pack of colourful page holders designed to keep sheet music, books and manuals securely open on desks, tables or music stands. Lightweight, durable and simple to use, each Uni-Boy provides reliable page control without damaging your paper, preventing unwanted page turns during practice, lessons or performances. Supplied in blue, red, yellow and green, this assorted pack is ideal for schools, teaching studios, ensembles and busy rehearsal environments, offering a long-lasting and highly practical solution for clear, stable reading.