Easier to use than traditional whistles, the cork pea makes it easy to blow a loud, crisp sound every time, even if you're a little out of breath. Great for and referees alike, the demonstrative shrill cuts through crowd noise and player chatter with ease. It can also be used in outdoors activities as emergency whistles. Features -Color: Orange -Material: PP, polyester -Size: About7.50X2.00X0.60cm/2.95X0.79X0.24inch -Note: The lanyard is included. -The sound is loud and crisp, you can quickly catch the crowds' attention anytime you want. -Each whistle comes with a lanyard, you can put easily around your neck, or on a wall mount, helps you free your hand. -High-quality PP and polyester, safe, durable and sturdy to use. -It comes with double frequency treble plastic back clip whistles loud. -These whistles are great for referees, training, teachers, survival, emergency, school, gym, etc, also suitable for people of any age.Package list: 6 x whistles