Description Made of plastic material, the Whistle is solid and durable. With loud sound, it is suitable for outdoor sports, like hiking, camping, climbing, etc. It is also for daily exercise, like pet training, football, basketball, soccer, hockey or others. With portable size, it is easy and convenient to take it anywhere you want. Features -Color:As Shown -Material:Plastic -Size:55.00X2.00X1.50cm/21.61X0.79X0.59in -The sound is loud and crisp, you can quickly catch the crowds' attention anytime you want. -Each whistle is compact and small, helps you to store the whistle conveniently and easily. -Using plastic material, it is safe, durable and sturdy to use, much better some whistles. -Also, this whistle is also a nice pendant, you can suspend it on some where you want, much practical. -These whistles are great for referees, training, teachers, survival, emergency, school, gym, etc, also suitable for people of any age. The sound is loud and crisp, you can quickly catch the crowds' attention anytime you want. Each whistle is compact and small, helps you to store the whistle conveniently and easily. Using plastic material, it is safe, durable and sturdy to use, much better some whistles. Also, this whistle is also a nice pendant, you can suspend it on some where you want, much practical. These whistles are great for referees, training, teachers, survival, emergency, school, gym, etc, also suitable for people of any age.