Item Type: WhistleMaterial: Plastic .wang-edit-text{ font-family:'Arial' important; } .wang-edit-text table { border-top: 1px solid 000; border-left: 1px solid 000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid 000; border-right: 1px solid 000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; } 1It is made of high quality plastic, sturdy and durable, and has a long service life. 2This dolphin whistle is resounding and crisp, and is a professional product for competitions. 3The whistle is equipped with a lanyard, which is convenient to carry and not easy to lose. 4The soft and adjustable rope can be hung on the neck comfortably and easily, or hung on the wall, which is highly practical. 5This whistle is very suitable for referees, coaches, training, teachers, schools, gymnasiums, etc.