Description:Suitable for referees, or anyone who needs a safe whistle, you can order according to your need.The whistle is made of stainless steel, and the lanyard is made of nylon, free your hands, and you can use for a long time without being broken.You can hang it on neck or hold it at hands as you like, convenient to storage and carry with small size and light weight.The loud whistle could catch others attention easily, saving time and strength for you.This kind of safe whistle also could be used as a tool for help when you are in danger.Specification:Material: stainless steel, nylon.Color: show as pictures.Size: show as pictures.Package included:2x whistles.