Product Description We design and manufacture our whistles using the highest standards. Our whistles are made of thickened plastic to ensure that they work as hard as you do. There is wood cork pea inside and the whistle is easily heard, reaching up to 120dB. Each whistle comes with a comfortable nylon lanyard. You can use it easily and effectively any time you need to get attention. THICKENED PLASTIC WHISTLES Our plastic whistle is made of thickened plastic. They won't break easily!! If you are looking for safety whistles for you or your family, our thickened plastic whistles are for you. CONVIENT TO USE A light and comfortable nylon lanyard comes with each whistle. You can wear it around your neck, wrist, or even on your backpack. LOUD CRISP SOUND Whistles with a pea are just easier to use. It’s science! The pea affects the airflow, creating a loud, shrill sound with less air pressure. If you are a coach or a referee and you need a professional whistle, our thickened plastic whistles will be your BEST option. WIDELY USING sports whistle(basketball, volleyball, football, soccer etc.), referee whistle, coach whistle, teacher whistle, guard whistle, lifeguard whistle, emergency whistle, survival whistle, self-defense whistle, police whistle, kid’s whistle, safety whistle, party favors whistle 12PCS Black Whistles 24PCS Black Whistles 12PCS Whistles 6PCS Stainless Steel Whistles 2PCS Red Whistles #productDescription h3 { margin: 0.75em 0px 0.375em -1px; }