Super loud - we have a corked pea in our whistle. Our corked peas are made of large natural corks, different from synthetic peas. When you whistle, it vibrates at a higher frequency, which makes the whistle sound louder. It can quickly reach 120 db. High quality - made of food grade 304 stainless steel. Contrast with plastic whistle or fake whistle; No matter how you use them, you don't have to worry about breaking them. It always looks brand new. User friendly - Each whistle is fitted with a soft braided cord for hands-free use. Package - 10 stainless steel metal whistles with cords. You can use it wherever you need to grab people's attention quickly. You can use it as a coach whistle, referee whistle, sports whistle, teacher whistle, police whistle, pet training whistle, emergency whistle, party whistle, etc. /p> We only sell items in the first picture, not items in other pictures. Due to the difference between different monitors, pictures may not reflect the actual product color. Due to manual measurement, please allow minor dimensional errors.