1. Plastic Whistles: The coach whistles with lanyards include 72 colorful plastic whistles. With such a large quantity, they are very suitable for team games and team sports. 2. Dimensions: The adult whistles come with a 2.0 x 0.7 x 0.8 - inch / 2 x 0.7 x 0.8 - inch lanyard respectively. They are light - weight and portable. 3. High - quality Plastic: The teacher whistles are made of high - quality plastic, which are bright, refreshing and durable. The lanyards are made of lightweight nylon material, ensuring long - lasting comfort. 4. Wide Application: The children's whistles are very suitable for any party sports and games. They can be used as referee whistles, party favors, and birthday gift bag fillers. They are an ideal choice for team games and sports events. 5. Great Party Supplies: The plastic whistles come in 5 bright colors: red, green, yellow, blue, and pink. They are easy to spot and add fun to sports and parties.