This plastic sports whistle design promises maximum noise and clarity. Bring this black whistle to your next game as ref to control the flow of play and ensure that your calls are heard. This all-sport whistle includes a lanyard for convenience and accessibility. Great for all sports including, volleyball, basketball, soccer or whenever a whistle is needed. Tandem Sport has been manufacturing and distributing quality volleyball, sports medicine, equipment and training devices to the sporting goods market since 1989.