Children explore active play while communicating through tubes. They hear how the sound of their voices is affected by the resonant frequency of the tubes when they whisper, sing or speak through the open ends. Easy to clean durable yet soft plastic prevents corrosion and creates a friendly way to speak and receive messages. 30mm thick piping spans up to 3.3mm, allowing talking tubes to be placed in different areas of the playground or play pocket. Combine communications and fun! Excellent way to promote social interaction, imaginative play, and learning to take turns speaking and listening. A fun new twist on an age old concept. Unlimited Free Airtime! Features large orange talking horn at one end and see through hose for added fun.