General description Package includes 6 pieces of stainless steel whistles with lanyards. These whistles are an ideal choice for referees, coaches, teachers, and sports officials. They are suitable for various indoor and outdoor sports activities, including hiking, boating, camping, hunting, emergency survival, and competitions. Technical specifications Material: Stainless steel for the whistles Lanyard material: Durable nylon Lanyard colors: Yellow and black Usage These coach referee whistles produce a loud and crisp sound, effectively attracting attention in any circumstance. Each whistle comes with a lanyard for convenient use, allowing you to hang it around your neck and keep your hands free.