Sturdy material: plastic kazoos are made of quality plastic, not easy to break, non-toxic and durable, the edges has been polished, a rather simple musical instrument but has lot of fun to play with How to Use: 1 put the wider side of the kazoo in the mouth; 2 Sing a melody in your voice, just hum it loudly; 3 Dont need to blow, you cant make a sound when you blow; 4 The vibration of vocal cords drives the vibration of the sound film on the kazoo to make a sound; The playing of kazoo is related to the level of voice Vibrant colors: 10 pieces kazoo instruments in 5 bright colors, such as red, blue, purple, yellow, green, simple but elegant design, loved by teens and an eye-catching instrument to play with Easy to use: colored kazoos with simple structure, easy to play with, no need to learn music theory or recite music score, a really wonderful gift for children, students and beginner Wide applications: these small kazoos are good accompaniments for guitar, ukulele, violin, piano keyboard, slide whistle and many other musical instruments, also can be applied as gifts and prizes