DescriptionMade of premium material, the whistle is solid and durable. With loudsound, 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 mini and portablesize, hanging keychain ring decor, it is easy and convenient to take itanywhere you want.Features-Color: Golden -Material: Brass -Size: 5.00X1.00X1.00cm/1.97X0.39X0.39in -The sound is loud and crisp, you can quickly catch the crowds' attention anytime you want. -Each whistle comes with a hole, you can put easily around your neck, or on a wall mount, helps you free your hand. -Using brass material, it is safe, durable and sturdy to use, much better than the plastic whistles. -Also, this whistle is also a nice pendant, thus you can suspend it on your keychain or car. -These whistles are great for referees, training, teachers, survival, emergency, school, gym, etc, also suitable for people of any age.